共找到 150 條與 2,4-二硝基苯肼 相關的標準，共 10 頁
この規(guī)格は，試薬として用いる2，4ージニトロフェニルヒドラジンについて規(guī)定する
2,4-Dinitrophenylhydrazine
2,4-dinitrophenylhydrazine
2,4-Dinitrophenylhydrazine (Reagent)
本標準規(guī)定了化學試劑2，4-二硝基苯肼的要求、試驗方法、檢驗規(guī)則、包裝及標志
Chemical reagent.2,4-Dinitrophenylhydrazine
Chemical Reagent 2,4-Dinitrophenylhydrazine
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 μg calculated as CO. 1.2 This test method is intended
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 ug calculated as CO.1.2 This test method
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
1.1 This test method covers the determination of total carbonyl in the range from 0.5 μg to 50 μg calculated as CO. 1.2 This test method is intended
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 g calculated as CO.1.2 This test method
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
This test method is applicable to the determination of trace amounts of aldehydes and ketones in aqueous solutions and a wide variety of organic
Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
本標準規(guī)定了用熒光法和2,4-二硝基苯肼比色法測定食品中的抗壞血酸。 本標準適用于蔬菜、水果及其制品中總抗壞血酸的測定。 本方法檢出限：熒光法為0.022μg/mL，2，4-二硝基苯肼比色法為0.1μg/mL。線性范圍：熒光法為5μg/mL～20μg/mL，2，4-
Determination of total ascorbic acid in fruits,vegetables and derived products-Flourometric method and colorimetric method
本標準規(guī)定了用熒光法和2，4一二硝基苯肼比色法測定抗壞血酸。 本標準適用于蔬菜、水果及其制品中總抗壞血酸的測定
Method for determination of total ascorbic acid in fruits,vegetables and derived products--Fluorometric method and colorimetric method
本標準規(guī)定了化妝品中氯乙醛、2,4-二羥基-3-甲基苯甲醛、巴豆醛、苯乙酮、2-亞戊基環(huán)已酮和戊二醛的高效液相色譜測定方法的原理、試劑和材料、儀器設備、試驗步驟、結果計算、回收率和精密度、允許差等內(nèi)容。 本標準適用于水類、膏霜類、乳液類、粉類和蠟基類化妝品中氯乙醛、2，4-二羥基-3-甲基苯甲醛
Determination of chloroacetaldehyde,2,4-dihydroxy-3-methylbenzaldehyde,crotonaldehyde,acetophenone,2-pentylidenecyclohexanone and glutaral in cosmetics—High performance liquid chromatography
本標準規(guī)定了2，4-二硝基氯苯的要求、采樣、試驗方法、檢驗規(guī)則以及標志、標簽、包裝、運輸和貯存。 本標準適用于2，4-二硝基氯苯產(chǎn)品的質量檢驗，該產(chǎn)品主要用于染料工業(yè)中
2,4-Dinitrochlorobenzene
