Stop-flow reversed phase liquid chromatography × size-exclusion chromatography for separation of peptides

2018 ◽  
Vol 1018 ◽  
pp. 119-126 ◽  
Author(s):  
Jucai Xu ◽  
Lin Zheng ◽  
Lianzhu Lin ◽  
Baoguo Sun ◽  
Guowan Su ◽  
...  
2000 ◽  
Vol 83 (3) ◽  
pp. 651-659 ◽  
Author(s):  
James J Stry ◽  
Jennifer S Amoo ◽  
Steve W George ◽  
Teresa Hamilton-Johnson ◽  
Ellen Stetser

Abstract Size-exclusion chromatography (SEC) was coupled to reversed-phase liquid chromatography/mass spectrometry for the determination of thifensulfuron-methyl and tribenuron-methyl in cottonseed and cotton gin trash. The limit of quantitation was 20 parts per billion (ppb), and the limit of detection was 6 ppb. The analytes were extracted by homogenization in a buffer solution. The extracts underwent a solvent exchange into methanol and were injected onto an SEC column. As the analytes eluted from the SEC column, the eluate was diverted onto a reversed-phase column for additional separation of the analytes and their detection via mass spectrometry. This method is unique because the samples are not cleaned up before analysis, the analytes are injected in methanol, and the entire analysis is completed in 30 min. Average recoveries and standard deviations for thifensulfuronmethyl and tribenuron-methyl in cotton gin trash were 91 ± 6% and 88 ± 5%, respectively. Average recoveries and standard deviations for thifensulfuron-methyl and tribenuron-methyl in cottonseed were 91 ± 11% and 99 ± 12%, respectively. This is an effective method for the detection and determination of thifensulfuron-methyl and tribenuronmethyl in cotton.


2018 ◽  
Vol 10 (23) ◽  
pp. 2668-2675 ◽  
Author(s):  
Hugh V. Hayes ◽  
Walter B. Wilson ◽  
Lane C. Sander ◽  
Stephen A. Wise ◽  
Andres D. Campiglia

NPLC-RPLC/FL and stop-flow fluorescence spectral analysis for the six-ring MM 302 PAH isomers in SRM 1597a.


2014 ◽  
Vol 1323 ◽  
pp. 97-103 ◽  
Author(s):  
Yan He ◽  
Weiying Hou ◽  
Melissa Thompson ◽  
Heidi Holovics ◽  
Tracy Hobson ◽  
...  

2018 ◽  
Vol 10 (41) ◽  
pp. 5051-5051 ◽  
Author(s):  
Hugh V. Hayes ◽  
Walter B. Wilson ◽  
Lane C. Sander ◽  
Stephen A. Wise ◽  
Andres D. Campiglia

Correction for ‘Determination of polycyclic aromatic hydrocarbons with molecular mass 302 in standard reference material 1597a by reversed-phase liquid chromatography and stop-flow fluorescence detection’ by Hugh V. Hayes et al., Anal. Methods, 2018, 10, 2668–2675.


2019 ◽  
Vol 91 (17) ◽  
pp. 10961-10969 ◽  
Author(s):  
Hendrik Küpper ◽  
Syed Nadeem Hussain Bokhari ◽  
Noelia Jaime-Pérez ◽  
Lyudmila Lyubenova ◽  
Nermeen Ashraf ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document