Mass spectral determination of aldehydes, ketones, and carboxylic acids using 1,1-dimethylhydrazine

1985 ◽  
Vol 11 (3) ◽  
pp. 303-310 ◽  
Author(s):  
C. A. McDaniel ◽  
Ralph W. Howard
Keyword(s):  
Carboxylic Acids ◽  
Spectral Determination ◽  
Mass Spectral

Mass spectral determination of long-chain quaternary amines in mixtures

1982 ◽  
Vol 136 ◽  
pp. 135-142 ◽  
Author(s):  
Robert J. Cotter ◽  
Gordon Hansen ◽  
Thomas R. Jones
Keyword(s):  
Spectral Determination ◽  
Mass Spectral ◽  
Long Chain

scholarly journals Mass spectral determination of phosphopantetheinylation specificity for carrier proteins in Mycobacterium tuberculosis

FEBS Open Bio ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 1220-1226 ◽  
Author(s):  
James Jung ◽  
Ghader Bashiri ◽  
Jodie M. Johnston ◽  
Edward N. Baker
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Spectral Determination ◽  
Carrier Proteins ◽  
Mass Spectral

Development and Single-Laboratory Validation of an Improved Method for the Determination of Cyclamate in Foods Using Liquid Chromatography/Tandem Mass Spectrometry

2014 ◽  
Vol 97 (6) ◽  
pp. 1651-1655 ◽  
Author(s):  
Romina Shah ◽  
Lowri S De Jager ◽  
Timothy H Begley
Keyword(s):  
Internal Standard ◽  
Pomegranate Juice ◽  
Spectral Determination ◽  
Precision Data ◽  
Mass Spectral ◽  
Minimal Sample ◽  
Accuracy And Precision ◽  
Liquid Chromatography Tandem Mass ◽  
Potential Matrix

Abstract A fast and reliable LC-MS/MS method for the determination of cyclamate in a variety of food matrices was developed and validated. This method provides both quantitation and qualitative mass spectral determination important for analysis of regulatory samples. Utilization of a cyclamate-d11 internal standard corrects for potential matrix interferences during sample injection and allows minimal sample preparation. Seventeen commercially available food products were fortified at 250 μg/mL and tested as part of the method validation. Recoveries ranged from 72 to 110%, with RSDs ranging from 3 to 15%. The linear range spanned 0.010–1.00 μg/mL. LODs were 0.1 and 0.6 ng/mL, determined in pomegranate juice and dried fig, respectively. LOQs were 0.3 and 1.6 ng/mL, which are significantly lower than needed to measure cyclamate when used as a food additive. The interday and intraday accuracy and precision data are presented. This method was validated for analysis of a variety of commonly adulterated products, including drinks, dried fruits, jams, and hard candies.

scholarly journals Mass spectral determination of phenylacetonitrile (PAN) levels in body tissues of adult desert locust, Schistocerca gregaria

2012 ◽  
Vol 58 (8) ◽  
pp. 1037-1041 ◽  
Author(s):  
Peris W. Amwayi ◽  
Daniel K. Masiga ◽  
Prem Govender ◽  
Peter E.A. Teal ◽  
Baldwyn Torto
Keyword(s):  
Schistocerca Gregaria ◽  
Spectral Determination ◽  
Desert Locust ◽  
Mass Spectral ◽  
Body Tissues
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