Simultaneous determination of triazine herbicides and their metabolites in shellfish by HPLC-MS/MS combined with Q/E-Orbitrap HRMS

Author(s):  
Xiaojie Sun ◽  
Jinfang Gao ◽  
Jun Xing ◽  
Lihong Xing ◽  
Mengmeng Guo ◽  
...  
1995 ◽  
Vol 78 (4) ◽  
pp. 1067-1071 ◽  
Author(s):  
David C Holland ◽  
Robert K Munns ◽  
José E Roybal ◽  
Jeffrey A Hurlbut ◽  
Austin R Long

Abstract A liquid chromatographic (LC) method is described for the simultaneous determination of the triazine herbicides, simazine (SIM), atrazine (ATZ), and propazine (PRO) in the 12.5–100 ppb range in catfish. The herbicides are extracted from catfish homogenates with ethyl acetate, followed by solvent partitioning between acetonitrile and petroleum ether and additional cleanup on a C18 cartridge. A Supelcosil LC-18-DB column is used for LC separation, and UV determination is at 220 nm. The isocratic mobile phase is a mixture of methanol, acetonitrile, and water. Mean recoveries from catfish were 88.7, 96.9, and 91.7%; standard deviations were 6.84,7.78, and 6.26%; and coefficients of variation were 7.72,8.03, and 6.82% for SIM, ATZ, and PRO, respectively.


Eisei kagaku ◽  
1988 ◽  
Vol 34 (5) ◽  
pp. 421-429 ◽  
Author(s):  
YASUHIDE TONOGAI ◽  
YUKARI HASEGAWA ◽  
YUMIKO NAKAMURA ◽  
YOSHIO ITO

1995 ◽  
Vol 304 (3) ◽  
pp. 339-352 ◽  
Author(s):  
Monika Wortberg ◽  
Sabine B. Kreissig ◽  
Geoffrey Jones ◽  
David M. Rocke ◽  
Bruce D. Hammock

1978 ◽  
Vol 48 ◽  
pp. 287-293 ◽  
Author(s):  
Chr. de Vegt ◽  
E. Ebner ◽  
K. von der Heide

In contrast to the adjustment of single plates a block adjustment is a simultaneous determination of all unknowns associated with many overlapping plates (star positions and plate constants etc. ) by one large adjustment. This plate overlap technique was introduced by Eichhorn and reviewed by Googe et. al. The author now has developed a set of computer programmes which allows the adjustment of any set of contemporaneous overlapping plates. There is in principle no limit for the number of plates, the number of stars, the number of individual plate constants for each plate, and for the overlapping factor.


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