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基于原子荧光光谱法的瓜尔胶中砷和铅的测定

Determination of arsenic and lead in guar gum by atomic fluorescence spectrometry

Author: 樊志刚 / Modern Analytical Chemistry Research / 2019,1(2): 35-42 / 2019-12-27 look698 look138

采用氢化物发生 - 原子荧光光谱法测定瓜尔胶中砷和铅,对仪器工作条件和氢 化物发生条件进行选择和优化。方法对砷和铅的检出限均为 0.01μg/L,精密度(RSD, n=6)为 5.94% ~ 10.7%,砷平行加标回收率为 9... More >>

利用气相色谱法测定腈纶中丙烯腈残留量

The residual amount of acrylonitrile in acrylic fiber was determined by gas chromatography

Author: 申子博 / Modern Analytical Chemistry Research / 2019,1(1): 28-33 / 2019-12-27 look685 look126

依照欧盟委员会关于生态标准对腈纶中丙烯腈残留量的控制,采用顶 空固相萃取和色质谱联用技术(HS-SMPE-GC/MS),建立了腈纶中丙烯腈残 留量的测定方法。该方法检测限低于 0.5 mg/kg,回收率在 91.9 % ~ 9... More >>

基于质谱分析法的小鼠间隙连接蛋白31磷酸化位点确定

Phosphorylation sites of mouse gap junction protein 31 were determined by mass spectrometry

Author: 马俊杰 / Modern Analytical Chemistry Research / 2019,1(1): 18-27 / 2019-12-27 look709 look140

间隙连接蛋白31(Connexin31,Cx31)是间隙连接蛋白(Connexin) 家族的一员,目前对于Cx31 的功能及其调节方式知之甚少。本文通过免疫沉淀、 SDS-PAGE 分离、蛋白质条带回收、蛋白质胶块酶解、4- ... More >>

基于HPLC法的双氯芬酸钠测定

Determination of diclofenac sodium by HPLC method

Authors: 龚文涛 陈晨* / Modern Analytical Chemistry Research / 2019,1(1): 13-17 / 2019-12-27 look768 look154

目的:采用高效液相色谱(HPLC)法测定双氯芬酸钠栓中双氯芬酸钠 的含量。方法:色谱柱为Hypersil GOLDC1s 柱(250 mm×4.6 mm,5um),以0.1 mol/L 冰醋酸溶液- 乙腊(50:50)为流动相... More >>

气相色谱质谱法测定水中糠醛含量研究

Determination of furfural in water by gas chromatography-mass spectrometry

Author: 康佳馨 / Modern Analytical Chemistry Research / 2019,1(1): 9-12 / 2019-12-27 look717 look190

采用吹脱捕集气相色谱质谱法,利用 PEG20M 柱测定水中的糠醛含量。 方法相对标准偏差 RSD<6.3%,相关性 r>0.9995,基体样品回收率为 90.5%- 105%,检出限 0.026ug/L。 More >>

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