紫外吸光度法测定食品、饮料和其他原料中的乙醛。
原理:
(醛脱氢酶)
Acetaldehyde + NAD+ + H2O → acetic acid + NADH + H+
试剂盒规格: 50次检测
方法:分光光度计,340nm
反应时间: ~4min
检测限制: 0.18 mg/L
适用样品:葡萄酒、香槟酒、啤酒、烈酒、白兰地、乳制品(如酸奶)面包、果汁、软饮料、可可粉、蔬菜和水果制品、咖啡和其他原料(如:生物培养基,样品等。)
方法认证: 该实验方法已通过MEBAK和瑞士认证。
优点:
不会浪费醛脱氢酶溶液(提供稳定的悬浮液)
价格低廉(每次检测成本)
所有试剂配置后的稳定性>2年
操作简单
网站提供Mega-Calc计算软件,处理原始数据更方便
包含标准品
Advantages
- No wasted aldehyde dehydrogenase solution (stable suspension supplied)
- Very competitive price (cost per test)
- All reagents stable for > 2 years after preparation
- Simple format
- Mega-Calc™ software tool is available from our website for hassle-free raw data processing
- Standard included
- Extended cofactors stability
- Suitable for manual, microplate and auto-analyser formats
UV-method for the determination of Acetaldehyde in foodstuffs, beverages and other materials
Principle:
(aldehyde dehydrogenase)
(1) Acetaldehyde + NAD+ + H2O → acetic acid + NADH + H+
Kit size: 50 assays (manual) / 500 (microplate)
/ 500 (auto-analyser)
Method: Spectrophotometric at 340 nm
Reaction time: ~ 4 min
Detection limit: 0.18 mg/L
Application examples:
Wine, champagne, beer, liqueurs, brandy, dairy products (e.g. yogurt),
bread, fruit juices, soft drinks, cocoa, vegetable and fruit products,
coffee, and other materials (e.g. biological cultures, samples, etc.)
Method recognition:
Methods based on this principle have been accepted by MEBAK