乙酸[AF法]检测试剂盒 ACETIC ACID(Acetyl-CoA Synthetase Format)assay Kit 货号:K-ACETAF 英文名称: ACETIC ACID(Acetyl-CoA Synthetase Format)assay Kit |
型号:null 产品货号: K-ACETAF |
价格:请致电:010-57128832,18610462672 |
品牌: 爱尔兰 |
品牌: Megazyme 产品货号:K-ACETAF 品牌:Megazyme 产品品名:乙酸[AF法]检测试剂盒 英文品名:ACETIC ACID(Acetyl-CoA Synthetase Format)assay Kit 规格型号: (141.6 mL of reagent [R1 + R2] per kit; equivalent to 456 reactions of 0.31 mL) INTRODUCTION: The most widely used method for enzymatic quantification of acetic acidis that based on the use of acetyl-coenzyme A synthetase (ACS),according to equations 1 – 3 below. For auto-analyser applications itbecomes necessary to prepare a “master mix” reagent (R1), containing allcomponents of the assay except the reaction initiation enzyme, ACS.However, reagent R1 when prepared from some kits has very limitedon-machine stability, owing to a rapidly increasing absorbance value. Toovercome this issue, Megazyme developed this kit (K-ACETAF), thatdoesn’t exhibit this instability phenomenon. Additionally, theanti-inhibitory compound polyvinylpyrollidone (PVP) has also beenincorporated into the assay to prevent inhibition caused by certaintannins found in grape juice and wine. KITS: Kits suitable for the preparation of 141.6 mL of reagent (equivalent to456 reactions of 0.31 mL) are available from Megazyme. The kits contain the full assay method plus: Bottle 1: Buffer (30 mL, pH 8.4) plus L-malic acid, PVP and sodiumazide (0.02 % w/v) as a preservative. Stable for > 2 years at 4°C. Bottle 2: (x2) NAD+ plus ATP and CoA.Freeze dried powder.Stable for> 5 years at -20°C. Bottle 3: L-Malate dehydrogenase plus citrate synthase suspension, 2.2mL. Stable for > 2 years at 4°C. Bottle 4: Acetyl-coenzyme A synthetase suspension (1.1 mL). Stable for> 2 years at 4°C. REAGENT PREPARATION: Preparation of R1: Component Volume bottle 1 (buffer) 5.50 mL bottle 2 (NAD+/ATP/CoA) 2.20 mL (after adding 5.50 mL of H2O to bottle 2) bottle 3 (L-MDH/CS) 0.44 mL (swirl to mix before use) H2O 18.35 mL Total volume 26.49 mL Preparation of R2: Component Volume bottle 4 (ACS) 0.22 mL (swirl to mix before use) H2O 1.60 mL Total volume 1.82 mL EXAMPLE METHOD: R1: 0.290 mL Sample: ~ 0.005 mL R2: 0.020 mL Reaction time: 15 min at either 20-25°C or 37°C Wavelength: 340 nm Prepared reagent stability: > 3 days when refrigerated Calculation: endpoint Reaction direction: increase Linearity: up to 30 μg/mL of acetic acid in final reaction solution 温馨提示:需要详细的产品使用说明书,请联系甄准生物: 联系人:杨树彦 电话:021-68404353 传真:021-58979353 手机/QQ:13795317828 邮箱:yangshuyan@zzstandard.com |