๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Open access atmospheric pressure chemical ionization mass spectrometry for routine sample analysis

โœ Scribed by Lester C.E. Taylor; Robert L. Johnson; Roberto Raso


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
673 KB
Volume
6
Category
Article
ISSN
1044-0305

No coin nor oath required. For personal study only.

โœฆ Synopsis


We report the introduction and use of an atmospheric pressure chemical ionization liquid chromatography-mass spectrometry instrument that has been designed specifically for use by the synthetic chemist on an open access, walk-in basis. This instrument has been configured with an easy-to-use sample log-in terminal that requires the user to provide only a sample identification number and a user name. Sample analysis takes approximately 4 min and provides the synthetic and medicinal chemist with rapid and reliable mass spectrometry analysis. Since installation of the system, it has analyzed an average of about 80 samples per day and has the capacity to run over 100 samples per day without the intervention of a specialist operator. This capability has eliminated the need for an operator to analyze routine samples and allows the mass spectroscopist more time to deal with problem solving.


๐Ÿ“œ SIMILAR VOLUMES


Surface desorption atmospheric pressure
โœ Huanwen Chen; Jian Zheng; Xie Zhang; Mingbiao Luo; Zhichang Wang; Xiaolin Qiao ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 633 KB

## Abstract Ambient mass spectrometry, pioneered with desorption electrospray ionization (DESI) technique, is of increasing interest in recent years. In this study, a corona discharge ionization source is adapted for direct surface desorption chemical ionization of compounds on various surfaces at

Atmospheric-pressure Chemical Ionization
โœ Takayuki Nabeshima; Yasuaki Takada; Minoru Sakairi ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 171 KB ๐Ÿ‘ 2 views

An atmospheric pressure chemical ionization (APCI) interface was developed for improved sensitivity in semimicro liquid chromatography/mass spectrometry (LC/MS). This interface consists of a stainless-steel capillary inserted into a bored stainless-steel block, and includes a collision plate perfora

Established and emerging atmospheric pre
โœ Gary J. Van Berkel; Sofie P. Pasilis; Olga Ovchinnikova ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 933 KB

## Abstract The number and type of atmospheric pressure techniques suitable for sampling analytes from surfaces, forming ions from these analytes, and subsequently transporting these ions into vacuum for interrogation by MS have rapidly expanded over the last several years. Moreover, the literature

Analysis of insect triacylglycerols usin
โœ Edita Kofroลˆovรก; Josef Cvaฤka; Pavel Jiroลก; David Sรฝkora; Irena Valterovรก ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 355 KB ๐Ÿ‘ 1 views

## Abstract An HPLC nonโ€aqueous reversedโ€phase separation system was adapted for analyzing insect triacylglycerols (TAG). The method uses two conventional Novaโ€Pak C18 columns connected in series, for a total length of 45โ€…cm. The mobile phase gradient is mixed from acetonitrile and 2โ€propanol, and

Imaging Melamine in Egg Samples by Surfa
โœ Shui-Ping YANG; Huan-Wen CHEN; Yu-Ling YANG; Bin HU; Xie ZHANG; Yu-Fen ZHOU; Li- ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ Chinese โš– 555 KB

The characteristic fragment (m/z 85) of protonated melamine, generated in MS/MS spectra recorded from the surface of egg slices using surface desorption atmospheric pressure chemical ionization mass spectrometry (SDAPCI-MS), has been used to image melamine in slices of cooked egg. The experimental r

Corona Discharge Atmospheric Pressure Io
โœ Hua-Zheng LIANG; Xie ZHANG; Shuang-Xi CHEN; Zhao SHAO ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ Chinese โš– 295 KB

Corona discharge atmospheric pressure ionization (API) source, developed in our lab, is coupled with a commercially available linear ion trap mass spectrometer for real time gas analysis. The H 2 O โ€ข+ (H 2 O) was observed and used to detect ethanol for the first time. The main reagent ions are m/z 3