DNPH

基本解释

The crotonaldehyde were extracted from the silica gel by ultrasonic treatment with DNPH solution.
硅胶管采样,2,4-二硝基苯肼(DNPH)溶液在超声中洗脱,高效液相色谱分离,二极管阵列检测器检测。
Using benzene as internal standard,the calibration factors of derivative of aldehydes 2,4-dinitrophenylhydrazine(DNPH) were measured.
将醛类物质与2;4-二硝基苯肼(DNPH)的衍生反应液直接进样;以苯为内标物;测定了甲醛、乙醛等醛类物质DNPH衍生物的校正因子.
Quantity of trace formaldehyde and acetaldehyde in beer could be directly determined by LC-MS/MS based on standard curve after derived by 2, 4- DNPH.
摘要啤酒中的微量甲醛和乙醛经2，4-二硝基苯肼衍生后直接用LC-MS/MS检测，标准曲线定量。
Dinitrophenylhydrazine(DNPH) and aldehyde or ketone can react and form 2,4-dinitrophenylhydrazone that can be injected directly on the gas chromatography(GC).
利用2,4二硝基苯肼(DNPH)与醛、酮类化合物反应生成稳定的衍生物2,4二硝基苯腙,对所生成的DNPH衍生物溶液直接进行气相色谱分析;
Keywords carbonyls;DNPH;HPLC;atmosphere;Pearl River Delta;
羰基化合物;2;4-二硝基苯肼;高效液相色谱;大气;珠江三角洲;