Home

Zimmermann reagent composition

Note: there are 2 different types of test for Zimmermann Reagent . When testing for Benzos and the test substance + reagent(s) are warmed to produce a colour result (requires test-tubes) A standard test (not Benzos) where the test substance is added to the agent (no warming/test tubes etc) Use the Search facility to see results easier Zimmermann-Reinhardtov reagens Zimmermann-Reinhardt's reagent is a mixture of manganese(II) sulphate, sulphuric acid and phosphorus acid. It is used for preventing oxidation of chloride ion while titrating iron(II) ion with permanganate solution

Zimmermann Reagent - SafeTest4

  1. The Zimmermann reagent on its own is colorless. It's best to use Zimmermann reagent to test a-PVP, MDPV, mephedrone or other cathinones, but it's also a good test for benzodiazepines. NOTE: Zimmermann can only test the PRESENCE, not PURITY or QUANTITY of a specific substance. Always test under a strong light and using the smallest possible sample
  2. Zimmerman's reagent produces violet/purple colours with keto-benzodiazepine derivatives such as diazepam (Valium), rohypnol (Flunitrazepam) fludiazepam (Erispan ) and flurazepam (Dalmane), Benzyl-methyl ketone (P2P/phenylacetone), Acetone, Methcathione, Oxycodone
  3. Zimmermann reagent consists mostly of toxic chemicals. Keep out of eyes and mouth. Keep away from children. Always use in a well-ventilated area. Wear gloves (supplied) when handling the bottle and cap. Wear protective eyewear. Never point towards face etc
  4. e 1622, (a) saturated w-dinitrobenzene in 5% Hya

1. Rev Bras Pesqui Med Biol. 1973 Jan-Apr;6(1):27-30. Application of an aqueous Zimmermann reagent for the determination of urinary 17-ketosteroids Zimmermann reagent is one of the primary tests for a-PVP, MDPV, mephedrone, other cathinones, and benzodiazepines. It's a 2 part test that helps distinguish secondary and tertiary cathinones (mephedrone vs a-PVP derivatives). Coincidentally the test includes the Beam reagent for identifying CBD ZIMMERMANN-REINHARDT'S REAGENT (used for preventing oxidation of chloride ion while titrating iron(II) ion with permanganate solution) Article No. 06529. Grade Purity CAS No. Molecular Formula Molecular Weight H.S. Code 3822.0090. Shelf Life. Zimmermann-Reinhardt reagent (determination of iron). Dissolve 70g of MnSO4.4H2O in 500ml of water, add 125ml of oonc.H2SO4 and 125ml of 85% H3PO4, and dilute to 1 liter. Zinc chloride solution, basic (reagent for silk). Dissolve 1000g of zinc chloride in 850ml of water, and add 40g of zinc oxide. Heat until solution is complete

SUBSCRIBE to stay on top of the game.Reagent Test Kit - https://www.protestkit.eu/product/zimmermann-reagent-test-kit/~DISCLAIMER~A positive or negative reac.. Zimmermann-Reinhardt's reagent → Zimmermann-Reinhardtov reagens. Zimmermann-Reinhardt's reagent is a mixture of manganese(II) sulphate, sulphuric acid and phosphorus acid. It is used for preventing oxidation of chloride ion while titrating iron(II) ion with permanganate solution Kovac′s reagent is prepared by mixing p-dimethylaminobenzaldehyde, isoamyl alcohol and concentrated hydrochloric acid. For identification of an organism, the formation of Indole from a tryptophan substrate is a useful diagnostic tool. Indole production is a crucial test in identification of Escherichia coli Important Reagents Their Composition and Uses. This is a list of inorganic and organic reagents commonly used in chemistry. This list of all important organic reagents which will be useful for the students preparing JEE, NEET exams or other SSC Examinations. This page was last edited on 21 January 2020 , at 18:05 (UTC) Our Zimmermann Reagent is still in the Research & Development phase. We need YOUR help in developing our color chart! Find out how YOU can be a part of the science behind saving lives

Zimmermann-Reinhardt's reagent @ Chemistry Dictionary

Zimmermann Reagent Test Instructions - Chemical Safet

Reagent composition as claimed in claim 1 wherein said diazonium chloride is contained in an amount of from 0.3 to 5.0 weight percent based on the weight of alkyl-phenol polyethylene oxide. 4. Reagent composition as claimed in claim 1 wherein component (b) is an alkyl-phenol polyethylene oxide of from 5 to 15 ethylene oxide moieties in the. Since 2008 Zimmermann is offering Brake Discs in a coated version named Coat Z - anti corrosion. With Coat Z+ an additional, breathtaking color is available for the special product line Black Z. Today almost all brake discs and most brake drums are available in coated quality Coat Z respectively Coat Z+ composition of the material. We call pure substance a substance whose physical constants remain identical regardless of the sample collected size. The molecule is the smallest part of a pure substance that retains all the chemical and physical properties of the pure substance. A molecule can be disintegrated using chemical or physical ways Milling solutions for the automotive industry. At Zimmermann, we share your passion for outstanding precision and complete attention to detail. With milling solutions that mobilize the automotive industry - from model making, tool and mold construction, through vehicle design and on to the production of jigs and gauges

Zimmermann benzo Test - Drug test kit (Benzodiazepines

An aqueous test reagent for detection of formaldehyde. The reagent comprises acetylacetone; ammonia, a C 1 -C 4 primary amine or salts thereof; and a C 4 -C 8 aliphatic organic dicarboxylic or tricarboxylic acid Fehling's reagent consists of two solutions. solution A contains 7% CUSO4 and solution B contains 25%KOH and 35% sodium potassium tartarate. When the two solutions are mixed in equal amounts a clear blue solution results for the tartrate forms a soluble complex with the copperhydroxide produced.this solution is widely used as an oxidising agent. ZIMMERMANN- REINHARDT'S REAGENT 물질안전보건자료 www.lobachemie.com 05/01/2019 3/10 4항목: 응급조치요령 4.1. 응급조치 요령 흡입했을 때 : 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오 Zimmermann brake discs are usually made of cast iron (with flake graphite) of different qualities; they correspond to the material used for the original spare parts. Therefore, the utilization of such materials (referred to as High Carbon by the competition) has always been a matter of course for Otto Zimmermann Reagents and Detection Methods, Vols. 1a and 1b (VCH Weinheim, ISBN 3-527-27834-6 and ISBN 3-527-28205-X) - somehow as a replacement for the antiquated staining reagents brochure. Both volumes are recommended to any thin-layer chromatographer because they show for each reagent at least one approved exampl

Since this reagent is suitable to most of the sensitive amino acid residues, it is often used as a general cleavage reagent. This reagent is recommended when peptides prepared on PAL or BAL resins contain tryptophan residues. Composition of Reagent K. trifluoroacetic acid (82.5% v/v) phenol (5% v/v) water (5% v/v) thioanisole (5% v/v Marble's Reagent (AKA Marble's etch) is a metallographic etchant for micro-etching 300 series stainless steels, nickel, and cobalt-based superalloys. The etchant will darken austenitic grains, attack sigma phases, and show grain flow. Please note that scratch marks from sample preparation will also become apparent. This product is made with reagent grade chemicals. It is liste M-PER reagent is designed to efficiently extract soluble protein from a variety of cell types, including primary cells and cells grown in suspension or adherent culture conditions. Performance of M-PER reagent was evaluated for yields of both total protein and specific target proteins from the various cellular compartments Invitrogen ™ TRIzol Reagent is a ready-to-use reagent, designed to isolate high quality total RNA (as well as DNA and proteins) from cell and tissue samples of human, animal, plant, yeast, or bacterial origin, within one hour. TRIzol™ Reagent is a monophasic solution of phenol, guanidine isothiocyanate, and other proprietary components whic

Phenol | C6H5OH or C6H6O | CID 996 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety. Reagent A: Add 10 g of p-hydroxy benzoic acid hydrazide (PAHBAH) to 60 ml of distilled water and slurry. Add 10 ml of concentrated hydrochloric acid to obtain complete dissolution and adjust the volume to 200 ml (Lever, 1972).Store at room temperature. Reagent B: Add 24.9 g of trisodium citrate to 500 ml of water and dissolve with stirring.Add 2.2 g of calcium chloride and dissolve with stirring Estimation of IAA by Salkowski reagent. Prepare the standards of indole-3-acetic acid in acetone or ethanol ranging from 5 to 50 μg per mL of concentration. Note: IAA is least soluble in water and highly soluble in an organic solvent. Take 1 ml of each indole-3-acetic acid standard in separate test tubes and add 2 ml of Salkowski reagent in each DRAFT May 12, 2004 9:55 am, 7x9_Preface 2 19 04.fm Preface vi iTRAQ™ Reagents Chemistry Reference Guide Text Conventions This guide uses the following conventions: • Bold indicates user action.For example: Type 0, then press Enter for each of the remaining fields. • Italic text indicates new or important words and is also used for emphasis We have evaluated the subunit composition of plasma von Willebrand factor (vWF) and found evidence that cleavage is present in normal individuals, increased in IIA and IIB von Willebrand disease (vWD), but decreased or absent in variants with aberrant structure of individual oligomers. vWF was rapidly purified from plasma on an analytical scale by monoclonal antibody immunoaffinity.

ZIMMERMANN Reagent Test Kit - Chemical Safet

Changes in the microbiota composition coincided with clinical signs of colitis, i.e. weight loss and diarrhea. Weight loss and diarrhea developed between day 6 and 10 after T‐cell transfer (Fig. 1 D). The populations of gates 44, 63, and 70 started to contract at day 6 and were almost absent on day 10 Cobalt Thiocyanate as Reagent. J Appl Pharm 10: 265. doi: 10.4172/1920-4159.1000265 Page 3 of 8 oe e 3 265 Pa a oe ae oa 245 Conc. HCl was added followed by the addition of two drops of Cobalt thiocyanate reagent whereas in the sample tube, a pinch of test powder was placed in sample tube and added one drop of Conc. HCl followe

HiPerFect Transfection Reagent for up to 333 transfections in 24-well plates or up to 1333 transfections in 96-well plates. 301705. 459,00 €. Add to cart. HiPerFect Transfection Reagent (4 x 1 ml) HiPerFect Transfection Reagent for up to 1332 transfections in 24-well plates or up to 5333 transfections in 96-well plates TRIzol Reagent is a complete, ready-to-use reagent for the isolation of high-quality total RNA or the simultaneous isolation of RNA, DNA, and protein from a variety of biological samples. This monophasic solution of phenol and guanidine isothiocyanate is designed to isolate separate fractions of RN HAGER'S REAGENT (for estimation of alkalaids) From $5.10 Packaging Benedict's Test is used to test for simple carbohydrates. The Benedict's test identifies reducing sugars (monosaccharide's and some disaccharides), which have free ketone or aldehyde functional groups. Benedict's solution can be used to test for the presence of glucose in urine. Some sugars such as glucose are called reducing sugars because they are capable of transferring hydrogens.

An aqueous Zimmermann reagent for the determination of 17

  1. Menkes disease is a rare x-linked recessive disorder of CU metabolism caused by mutations to the ATP7A gene. Menkes disease affects an estimated 1 in every 100,000 - 250,000 births and is characterised by sparse, kinky hair and failure to thrive and progressive deterioration of the nervous system. Symptoms commonly present during infancy, but.
  2. Our Catalase Reagent should be stored at 4 to 8 °C and protected from light. Under these conditions, the reagent has a shelf life of 26 weeks from the date of manufacture. References 1. Mitchell RL, Anderson IC. Catalase photoactivation. Science 1965; 150:74. 2. Funada H, Hattori K-I, Kosakai N
  3. ate them with bleach. This kind of chemical - containing biological waste should be disposed of as a chemical waste (please see the guidance sheet wit
  4. oantipyrine 0.8 mmol/L DHBS Linearity1.0 mmol/L GPO (microbial) > 3000 U/L Glycerol Kinase (microbial) > 100 U/L Lipoprotein Lipase (microbial) > 2000 U/L Peroxidase (horseradish) > 300 U/L Buffer 53 mmol/L pH 7.0 ± 0.1 at 20°
  5. imal impact on cell physiology (Jacobson et al. [2009] Biotechniques 47, 617-24). It is ideal for use in a variety of challenging applications, including transfection of cancer model cell lines, insect cells, stem cells, and for virus and protein production
  6. Luciferase Cell Culture Lysis 5X Reagent is used with the Luciferase Assay System (Cat.#. E1500), developed for reporter quantitation in mammalian cells. This lysis buffer provides rapid lysis of a variety of cell types, including adherent and nonadherent mammalian cells, bacterial cells, plant cells and tissue homogenates

Fry's Reagent is a popular metallographic etchant for micro-etching precipitation hardening stainless steels (PH grade), martensitic stainless steels, and some superalloys. It is also an effective stain for weld inspection. When used in conjunction with the nital etch, it will stain the weld nugget and make the weld easier to see. This product is mad DharmaFECT 1 is our most all-purpose transfection reagent formulation; demonstrating efficient, low-toxicity delivery to over 35 cell types. DharmaFECT 1 achieves effective transfection of siRNA and microRNA reagents at low concentrations and with low cytotoxicity, especially when compared to transfection reagents designed for use with plasmid DNA Zimmermann-hearts beat with 156 kilowatts. High-performance solutions, fast reaction times and maximized material removal rates - these are all specific aerospace industry requirements. And unmistakable components of Zimmermann's milling solutions. We will work together with you to develop custom-built horizontal machining centers and. Nessler's Reagent R010 Composition** Ingredients Mercuric chloride 10.0 gm Potassium iodide 7.0 gm Sodium hydroxide 16.0 gm Water (ammonia free) 100.0 ml Final pH ( at 25°C) 13.2±0.05 **Formula adjusted, standardized to suit performance parameters Direction What is the chemical composition of Dragendorff's reagent?Read more: What_is_the_chemical_composition_of_Dragendorff's_reagen

•Liquid and lyophilised reagents available •Suitable for the detection of both total and non prostatic acid phosphatase •Working reagent stable for 5 days at +2 to +8oC or 24 hours at +15 to +25oC •Measuring range 2.53-159 U/l total acid phosphatase; 1.76-80.8 U/l non-prostatic acid phosphatase Indicates liquid option availabl Dipridyl reagent Dissolve 0.1g in 0.5ml ethanol,or in 0.1M HCl Dithiol reagent 4-methyl-1:2 dimercarpo-benzene Dissolve 0.2g in 100 ml of 1% NaOH Dithizone solution Dissolve 30 mg (milligram) of dithizone in 1 liter chloroform, add 5 ml alcohol, and store in refrigerator. Dragendorff reagent reagents. The results of these studies are entirely consistent with the earlier representation of the composition of Grignard reagents by the Schlenk equilibrium (R 2Mg + MgX 2 ~— 2 RMgX). The results are also consistent with the view that the composition of Grignard reagents varies with the nature of the solvent, the organic group and the. This idea of the composition of the Grignard reagent has been popularly held ever since, in spite of many reasons for doubting how anything so simple can fit all the complex results obtained—for.

Zimmermann Reagent Test Instructions — PRO Tes

Bial's reagent. Bial's reagent contains orcinol (5-methylresorcinol) in concentrated HCl with a small amount of FeCl3 catalyst. Pentoses are converted to furfural by this reagent, which form a bluegreen color with orcinol. This test is used to distinguish pentoses from hexoses. Posted by General Chemistry Laboratory at 3:56 AM added reagent with a spectrophotometer and plotting its value relative to the known phosphate concentration, a standard phosphate curve can be developed [Standard Methods, 1992]. The sec-ond portion of this type of experimental analysis involves measuring the absorbance water sam-ples and reagent having unknown phosphate concentrations Color has historically seen limited use in metallography, mainly due to the cost of film and prints and the difficulty and cost of reproducing images in publications. However, with the growth of digital imaging, capturing color images is much simpler and cheaper. Also, printing images in color is inexpensive for in-house reports, and can be distributed cheaply on CDs, although reproduction in. reagent allows a rapid titration with a stable end point. The base of this reagent was changed to imidazole in 1986 to improve the buffering of the KF system and increase the water capacity of the solvent to 7 mg/mL. This reagent is described in detail in section 2.2. Hydranal-Composite, a one-component reagent tha

Application of an aqueous Zimmermann reagent for the

Reagents: Sulphur amino acids (1.0% cystine, and methionine) Sodium nitroprusside (2% prepared fresh) Ammonium hydroxide; Procedure: Put 2 mL amino acid solution into the test tube. Add 0.5 mL nitroprusside solution and shake thoroughly. Add 0.5 mL ammonium hydroxide. Observe the color change. Result Interpretation The following remarks on the use of the fire assay fluxes and litharge may serve as an aid in arriving to a correct composition of charges for most cases:. Litharge or red lead is added in the proportion of one or two parts to two of ore; if too much litharge (lead oxide) is used the slags are not clean, as a slag containing lead may mean a loss of silver and gold HYDRANAL™ - Composite 5 K, Reagent for volumetric one-component Karl Fischer titration in aldehydes and ketones (methanol free), Honeywell™ Fluka™. Pricing and Availability. HYDRANAL™ - CRM Water Standard 10.0, Certified reference material for Karl Fischer titration (water content 10 mg/g = 1.0%), Honeywell Fluka™

REAGENTS Reagent Kit Magnesium is supplied as a liquid, ready-to-use, single reagent kit which contains: 7D70-20 10 x 84 mL Estimated tests per kit: 3,622*-20°C 1 year 1 year 67D70-30 6 x 84 mL Estimated tests per kit: 2,173* *Calculation is based on the minimum reagent fill volume per kit. Reactive Ingredients Concentration TRIS Buffer 100 mmol/ Media, Reagents, and Supplies Used Reagents Used. For the spot test, 5% p-dimethylaminobenzaldehyde or 1% pdimethylaminocinnamaldehyde is prepared in 10% (v/v) concentrated HCl.; For the tube method, Kovac's reagent is used for aerobic organisms, and Ehrlich's reagent is used for anaerobes and weak indole producers

On the lower edge of the label for each LaMotte reagent is a six (sometimes seven) digit lot number. The first two digits of the lot number identify the week of manufacture. The third digit identifies the last number in the year of manufacture. For example, a reagent with a lot number of 4951222 was manufactured the 49 th week of the year 2015 447714198 - EP 2845908 A4 20160127 - REAGENT COMPOSITION FOR REDOX REACTION - [origin: EP2845908A1] The present invention relates to a stabilizing composition useful for improving the stability of reagent for redox reaction, and a reagent composition for redox reaction having an improved stability. The reagent composition for redox reaction can be applied for a reagent for electrochemical. VP reagents must be added in the order and the amounts specified or a weak-positive or false-negative reaction may occur. A weak-positive reaction may be masked by a copper-like color which may form due to the reaction of KOH and a-naphthol. Read the VP test within 1 hour of adding the reagents Martechnic S300 WA-SOL water in oil reagent composition kit. Productcode: 500300. Water-in-Oil Reagent Composition Kit. To ensure efficient and profitable delivery options, Martechnic® has been using a water-in-oil reagent composition kit WA-SOL® for many years. The key advantage is that the product is NOT CLASSIFIED AS DANGEROUS GOOD FOR.

The two isotopes of nitrogen, 14 N and 15 N, have relative abundances extremely variable among solar system reservoirs such as planets and their atmospheres, primitive and differentiated meteorites, comets. Based on nitrogen isotope variations i KOVACS REAGENT - For in vitro use only - Catalogue No. RK75 Our Kovacs Reagent is used to detect the presence of indole, which is one of the end products from bacterial oxidation of the amino acid, tryptophan. Tryptophan is an amino acid that can be oxidized by some bacteria to form three major. It is made slightly alkaline by adding KOH or NaOH. On being reacted with gaseous ammonia it produces brown fumes and on being passed through a solution of ammonia, it gives a dirty brown precipitate. The reaction involved is: The product formed is brown in colour and is used in test for ammonium ion. It is a qualitative test for ammonia

ZIMMERMANN / BEAM Reagent Test Kit — PRO Tes

reagent kit must be discarded. For information on tracking on-board time, refer to the ARCHITECT System Operations Manual, Section 5. • Reagents may be stored on or off the ARCHITECT i System. If reagents are removed from the system, store them at 2-8°C (with septums and replacement caps) in an upright position. For reagents stored off th reagent, calibrators, disposables, etc. to be used along with the instrument. Since the instrument supplied had no utility unless the reagent, calibrators, supplies are to be treated as naturally bundled to form composite supply. Treating the said supply of medical instrument as the principal supply, the AAR held that the supply o Principle, Composition, Interpretation of Results. Oxidase test is a procedure used to determine the existence of cytochrome c oxidase enzyme. What the system does is it helps the movement of electrons between redox dye- tetramethyl-p-phenylene-diamine and the bacteria' electron donors. It helps identify bacteria capable of producing. Fluka HYDRANAL™-Composite 5 K Reagent for volumetric one-component Karl Fischer Honeywell Research Chemicals Density (g/cm3): 1.17 Flash Point (°C): 99 °C Chemical name: HYDRANAL®-Composite 5 K Material category: Karl Fischer Titration Material Group 1: Volumetry Material Group 2: One Component Volumetry Product Brand: Hydranal Chemical. ReLeSR™ is an enzyme-free reagent for dissociation and passaging of human embryonic stem (ES) or induced pluripotent stem (iPS) cells as aggregates without manual selection or scraping. Passaging human ES/iPS cells with ReLeSR™ easily generates optimally-sized aggregates, while eliminating the hassle and variability associated with manual.

ZIMMERMANN-REINHARDT'S REAGENT Reagent for Organic

We traced diatom composition and diversity through time using diatom-derived sedimentary ancient DNA (sedaDNA) from eastern continental slope sediments off Kamchatka (North Pacific) by applying a short, diatom-specific marker on 63 samples in a DNA metabarcoding approach.The sequences were assigned to diatoms that are common in the area and characteristic of cold water Apply for Senior Director of Reagent Development - Research & Development at Yoh, A Day & Zimmermann Company Enter your email to apply with your existing LinkedIn profile, or to create a new one. The reagent is used in the ASTM 1319 standardised testing method used by fuel producers worldwide to meet US Environmental Protection Agency (EPA) and US Federal Aviation Administration (FAA) requirements. The reagent contains special fluorescent dyes in silica gel to test the composition of a wide range of fuels including jet fuel

Making Laboratory Reagents for General Use Salt Lake Metal

Urea is synthesized in the liver from ammonia, as a result of deamination of amino acids. This biosynthetic pathway is the chief means of excretion of surplus nitrogen by the body. Measurements obtained by this test are used in the diagnosis of renal and metabolic disorders, most frequently kidney disorders. More than 60% of the kidney must be. Sudan III is a hydrophobic bisazo dye [1] . Sudan III changes its color from orange to blue against a small volume of sulfuric acid, and the acetonitrile solution of Sudan III is the most suitable for observing the color-change phenomenon. H-NMR and UV-Vis spectroscopic studies show that the color-change mechanism of Sudan III against sulfuric.

  • متى يقرر الرجل الزواج.
  • استرجاع الصور المحذوفة من الايفون startimes.
  • كارتة طريق الجلالة.
  • دراسة الطب في السنغال.
  • كيفية العمل على ووردبريس.
  • رمزيات رمادية حزينة بدون كتابة.
  • الجيتول.
  • خريطة الموارد الطبيعية في أفريقيا.
  • مواصفات هوندا سيفيك 1997.
  • جريدة الأهرام الرئيسية اليومية.
  • الجامعة المستنصرية كلية التربية.
  • ترجمة خطف بالانجليزية.
  • معرض سيارات الليثي.
  • عدد جلسات حشو العصب.
  • ملابس العشرينات.
  • شيماء سبت قبل وبعد.
  • مدرسة مونتيسوري.
  • الأمراض التي تصيب العين وكيفية الوقاية منها.
  • Manal Benchlikha instagram.
  • فطام القطط.
  • كود زكرياء الوقوف والتوقف.
  • من هو محرم المرأة في الحج.
  • Safar Flyer.
  • رسم كرتون بالرصاص سهل.
  • شخصيات مسلسل الحيالة.
  • عائلة هاري ستايلز.
  • الكتابة على سي دي.
  • برنامج الرسم والتلوين.
  • رامز قرش البحر.
  • اسم تيم في المنام.
  • الدولار الجديد والقديم.
  • بحر قابوياوا.
  • علاج الإسهال الاسود عند الطيور.
  • هوديني والسجن.
  • احلى الصور للاطفال الصغار 2020.
  • سينما 3D.
  • ازاي اروح دار المركبات صلاح سالم بالمترو.
  • البرجوازية pdf.
  • السلام عليكم ورحمة الله وٍبُرٍكآتُهْ مزخرفة.
  • ماهي المشاريع الصغيرة.
  • محافظة الشعيبة.