伊人久久大香线焦|久久青青草国产第一页|亚洲国产九九九热视频|超乳视频爆乳无码免费专区|欧美日韩亚洲视频一区二区|少妇高潮惨叫喷水在线观看|亚洲区欧美区偷拍区中文字幕|国产日韩一区二区三区在线观看

分析物意義：  蔬菜水果中的天然成分或加工食品中的添加成分

Megazyme檢測(cè)試劑盒優(yōu)點(diǎn)：反應(yīng)快、試劑穩(wěn)定 

For the specific assay of L-ascorbic acid in beverages, meat, flour, dairy and vegetable products. Content:40 assays per kit

Colourimetric method for the determination of L-Ascorbic Acid 
in foodstuffs, feed, wine and other materials

Principle:
                        (5-methylphenazinium methosulphate)
(1) L-Ascorbic acid + R-H2 + MTT → dehydroascorbate +                                                                                         MTT-formazan + H+
                            (ascorbic acid oxidase)
(2) L-Ascorbic acid + ?O2 → dehydroascorbate + H2O

	Kit size:                             40 assays (manual) / 400 (microplate) 
                                          / 400 (auto-analyser) Method:                             Spectrophotometric at 578 nm Reaction time:                   ~ 8 min Detection limit:                  0.175 mg/L Application examples: Wine, beer, fruit juices, soft drinks, jam, milk, dairy products 
(e.g. cheese), dietetic foods, baby foods, processed meat, baking
additives, fruit and vegetables (e.g. tomato and potato), 
pharmaceuticals, feed and other materials (e.g. biological cultures,  
samples, etc.) Method recognition:     Methods based on this principle have been accepted by MEBAK

Advantages

• Very competitive price (cost per test)
   
• All reagents stable for > 6 months after preparation
   
• Mega-Calc? software tool is available from our website for hassle-free raw data processing
   
• Standard included
   
• Suitable for manual, microplate and auto-analyser formats