LC-electron capture-APCI(-)-MS determination of nitrobenzoxadiazole derivatives.
LC-electron capture-APCI(-)-MS determination of nitrobenzoxadiazole derivatives.
复制标题
LC-电子捕获-APCI(-)-MS 测定硝基苯并恶二唑衍生物。
DOI:
10.1039/b308752b
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
U. Karst
中科院分区:
文献类型:
--
作者:
H. Hayen;N. Jachmann;M. Vogel;U. Karst
Nitrobenzoxadiazole (NBD) derivatives are determined with limits of detection ranging down to 20 nmol l(-1) using liquid chromatography-mass spectrometry (LC-MS) with electron capture (EC) ionisation. An atmospheric pressure chemical ionisation (APCI) interface operated in the negative ion mode is used as ionisation source. Amine derivatives of 4-chloro-7-nitro-2,1,3-benzoxadiazole (NBDCl) as well as the isocyanate derivatives of 4-nitro-7-piperazino-2,1,3-nitrobenzoxadiazole (NBDPZ) have been analysed using this technique. The parameters favouring electron capture mechanisms have been investigated thoroughly under consideration of the competing mechanism of deprotonation to allow a better understanding of the electron capture process and to improve selectivity of the analysis.
影响因子:
2
作者:
Lee, SH;Williams, MV;Blair, IA
通讯作者:
Blair, IA
DOI:
10.1016/s0021-9673(00)00364-2
发表时间:
2000
期刊:
Journal of chromatography. A
影响因子:
--
作者:
Giese,RW
通讯作者:
Giese,RW
影响因子:
7.4
作者:
Singh, G;Gutierrez, A;Blair, IA
通讯作者:
Blair, IA