Homogeneous liquid liquid extraction using salt as mass separating agent for the ultra high pressure liquid chromatographic determination of doxorubicin in human urine

2020 ◽  
Vol 158 ◽  
pp. 105260
Author(s):  
Ioanna-Chrysoula Stratigou ◽  
Apostolia Tsiasioti ◽  
Paraskevas D. Tzanavaras ◽  
Catherine K. Markopoulou ◽  
Konstantinos Fytianos ◽  
...  
Keyword(s):  
High Pressure ◽  
Chromatographic Determination ◽  
Liquid Extraction ◽  
High Pressure Liquid Chromatographic ◽  
Ultra High Pressure ◽  
Liquid Liquid Extraction ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic ◽  
Separating Agent

High Pressure Liquid Chromatographic Determination of Monensin in Feed Premixes

1983 ◽  
Vol 66 (2) ◽  
pp. 284-286
Author(s):  
Thomas D Macy ◽  
Andrew Loh
Keyword(s):  
High Pressure ◽  
Coefficient Of Variation ◽  
Chromatographic Determination ◽  
Hplc Method ◽  
High Pressure Liquid Chromatographic ◽  
Average Recovery ◽  
Bioassay Method ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A high pressure liquid chromatographic (HPLC) method has been developed to determine monensin in feed premixes. The method is simple and rapid. Monensin is extracted with methanol-water and determined in the extracting solution by HPLC. Average recovery for monensin from a 13.2% premix sample was 103% (coefficient of variation (CV), 2.6%) by HPLC and compares with the value of 100% (CV, 3.4%) obtained by the turbidimetric bioassay method.

Ion Pairing High Pressure Liquid Chromatographic Determination of Amaranth in Licorice Products

1981 ◽  
Vol 64 (6) ◽  
pp. 1411-1413
Author(s):  
William J Hurst ◽  
James M Mckim ◽  
Robert A Martin
Keyword(s):  
High Pressure ◽  
Ion Pairing ◽  
Chromatographic Determination ◽  
Buffer Solution ◽  
High Pressure Liquid Chromatographic ◽  
Coefficients Of Variation ◽  
Liquid Chromatographic Method ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A high pressure liquid chromatographic method is described for the determination of amaranth (FD&C Red No. 2; Red No. 2) in licorice products. The Red No. 2 is extracted with a basic buffer solution, cleaned up on a Sep-Pak column, chromatographed on a reverse phase column in the ion pairing mode, and detected at 254 nm. The procedure is time-conservative with accurate and precise results. Recovery data ranged from 93 to 104%, and coefficients of variation were less than 4% for standards and samples.

High Pressure Liquid Chromatographic Determination of the Five Major Alkaloids in Papaver somniferum L. and Thebaine in Papaver bracteatum Lindl. Capsular Tissue

1979 ◽  
Vol 62 (2) ◽  
pp. 310-314
Author(s):  
Phillip G Vincent ◽  
Beatriz Ferreira Engelke
Keyword(s):  
High Pressure ◽  
Solvent Extraction ◽  
Chromatographic Determination ◽  
Papaver Somniferum ◽  
High Pressure Liquid Chromatographic ◽  
Papaver Bracteatum ◽  
Single Column ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A high pressure liquid chromatographic isocratic procedure is described for determining and quantitating the 5 major alkaloids narcotine, papaverine, thebaine, codeine, and morphine in Papaver somniferum L. and thebaine in Papaver bracteatum Lindl. Other papaveraceous alkaloids, including salutaridine, oripavine, laudanosine, isothebaine, cryptopine, alpinigenine, narceine, protopine, and gnoscopine, were also quantitated. The values for morphine, codeine, and thebaine in P. somniferum were in agreement within 5—9% with values obtained by the United Nations Narcotics Laboratory by other methods. In contrast to previously reported procedures, the advantage of this method is that no precolumn or other purification other than solvent extraction of the capsular tissue is necessary. Isocratic chromatography alone on a single column resolved the 5 major alkaloids.

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