scholarly journals Rapid Determination of Sudan Dyes in chilli products using ultra high performance supercritical fluid chromatography-photodiode array detection

2021 ◽  
Vol 19 (1) ◽  
pp. 560-570
Author(s):  
Xuyuan Nie ◽  
Yuejie Xie ◽  
Qiang Wang ◽  
Huaheng Wei ◽  
Chenjing Xie ◽  
...  
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
High Performance ◽  
Rapid Determination ◽  
Sudan Dyes ◽  
Photodiode Array Detection ◽  
Photodiode Array ◽  
Array Detection

Determination of gangliosides by high-performance liquid chromatography with photodiode-array detection

1992 ◽  
Vol 605 (2) ◽  
pp. 221-225 ◽  
Author(s):  
Marcello Previti ◽  
Francesco Dotta ◽  
Giuseppe Mario Pontieri ◽  
Umberto Di Mario ◽  
Luisa Lenti
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Photodiode Array Detection ◽  
Photodiode Array ◽  
Array Detection

scholarly journals Simultaneous HPLC Determination of Three Bioactive Alkaloids in the Asian Medicinal Plant Stephania rotunda

2010 ◽  
Vol 5 (6) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Sothavireak Bory ◽  
Sok-Siya Bun ◽  
Béatrice Baghdikian ◽  
Fathi Mabrouki ◽  
Sun Kaing Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
Potassium Phosphate ◽  
Solvent System ◽  
Hplc Method ◽  
Photodiode Array Detection ◽  
Linear Behavior ◽  
Photodiode Array ◽  
Array Detection ◽  
The Mean

A reliable high-performance liquid chromatography (HPLC) method coupled with photodiode array detection has been developed and validated for the determination of three major alkaloids: cepharanthine, tetrahydropalmatine and xylopinine in Stephania rotunda Lour. (Menispermaceae) collected in Cambodia. The chromatographic separation was carried out on a Symmetry C8 column (250 mm x 4.6 mm, 5 μm, Waters), with an isocratic solvent system of 25 mM potassium phosphate buffer (pH 3.5) – acetonitrile. UV detection was performed at 282 nm. Good linear behavior over the investigated concentration ranges was observed with values of r2>0.9964 for all the analytes. The method was reproducible with intra- and inter-day variations of less than 3.91%. The mean recoveries of the analytes ranged from 95.7 to 104.6%. The proposed method was linear, accurate, precise and specific. The validated method was successfully applied to quantify the three alkaloids in various parts of Stephania rotunda and in tubers collected from different Cambodian regions. The results indicated that the developed HPLC method could be used for the quality control of S. rotunda.

scholarly journals Preparation of Environmental Samples for Determination of Sulfonylurea Herbicides by Solid-Phase Extraction Using a Polymeric Sorbent

1998 ◽  
Vol 81 (1) ◽  
pp. 99-104 ◽  
Author(s):  
Michael S Young
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Rapid Determination ◽  
Phase Extraction ◽  
Sulfonylurea Herbicides ◽  
Photodiode Array Detection ◽  
Polymeric Sorbents ◽  
Photodiode Array ◽  
Array Detection

Abstract An analytical procedure was developed for rapid determination of sulfonylurea herbicides in water or soil. Samples were prepared by solid-phase extraction using polymeric sorbents in cartridges and analyzed by liquid chromatography with photodiode array detection. Recoveries were consistent for all sample matrixes tested and were generally >85%, except for tribenuron methyl (75%). Detection limits were <100 ng/L for water samples

Application of a fabric phase sorptive extraction-high performance liquid chromatography-photodiode array detection method for the trace determination of methyl paraben, propyl paraben and butyl paraben in cosmetic and environmental samples

2019 ◽  
Vol 11 (48) ◽  
pp. 6136-6145 ◽  
Author(s):  
Sumeyra Gülle ◽  
Halil Ibrahim Ulusoy ◽  
Abuzar Kabir ◽  
Angela Tartaglia ◽  
Kenneth G. Furton ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Environmental Samples ◽  
High Performance ◽  
Detection Method ◽  
Photodiode Array Detection ◽  
Sorptive Extraction ◽  
Photodiode Array ◽  
Array Detection

A new sample preparation and chromatographic separation method for methyl, propyl and butyl paraben in cosmetic and environmental samples has been developed, based on fabric phase sorptive extraction and high performance liquid chromatography-photodiode array detection.

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