Separation of lanthanides and actinides on a bistriazinyl pyridine coated reverse phase column

2011 ◽  
Vol 99 (6) ◽  
pp. 325-334 ◽  
Author(s):  
P. Deepika ◽  
N. Sivaraman ◽  
K. N. Sabharwal ◽  
T. G. Srinivasan ◽  
P. R. Vasudeva Rao
1982 ◽  
Vol 30 (6) ◽  
pp. 2287-2290 ◽  
Author(s):  
Hisanobu Yoshida ◽  
Ikue Morita ◽  
Tsutomu Masujima ◽  
Hideo Imai

1984 ◽  
Vol 67 (6) ◽  
pp. 1058-1061
Author(s):  
Harvey L Kramer

Abstract A liquid chromatographic (LC) method is described for the determination of sodium fluoroacetate in meat baits and formulations. Baits were extracted with water, ultrafiltered, partitioned into butanone, back-partitioned into dilute base, and diluted with acetonitrile. Aqueous formulations of 1080 were diluted with acetonitrile. The solutions were esterified with p-bromophenacyl bromide, using crown ether catalysis, and chromatographed on a 10 μm reverse phase column. Ultraviolet absorbance was monitored at 260 nm. Samples spiked to contain 1 mg and 10 mg 1080/100 g meat gave recoveries of 84.0-103.4%.


2004 ◽  
Vol 27 (14) ◽  
pp. 2269-2291 ◽  
Author(s):  
V. Vidyalakshmi ◽  
M. S. Subramanian ◽  
N. Sivaraman ◽  
T. G. Srinivasan ◽  
P. R. Vasudeva Rao

1988 ◽  
Vol 71 (6) ◽  
pp. 1106-1109
Author(s):  
Theo J Spierenburg ◽  
Henk Van Lenthe ◽  
Gertjan De Graaf ◽  
Lowie P Jager

Abstract A liquid chromatographic method for the determination of olaquindox in both medicated feeds and porcine gastrointestinal tract is described. Samples are extracted with water and cleaned on a disposable reverse-phase column. The eluate is chromatographed on a reverse-phase column under isocratic conditions. Olaquindox is detected by UV absorption at 260 nm. The minimum amount detected by this method was 0.075 ng. The corresponding minimum detectable concentration in a 1 g sample was 0.3 mg/kg. The detector response was linear within the interval of 0-500 ng. Mean recovery of olaquindox in spiked gastrointestinal samples was 89 ± 5% (mean ± standard deviation, n = 43). Concentration profiles of olaquindox in the gastrointestinal tract of pigs fed medicated feed were used to evaluate the preventive potency against Treponema hyodysenteriae. The presence of some N-O reduced metabolites of olaquindox in the gastrointestinal tract was assessed


1987 ◽  
Vol 164 (3) ◽  
pp. 261-266 ◽  
Author(s):  
Kiyoshi Kidouchi ◽  
Naruji Sugiyama ◽  
Hideko Morishita ◽  
Masanori Kobayashi ◽  
Yoshiro Wada ◽  
...  

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