Krishna K. Verma

Determination of ammonia and aliphatic amines in environmental aqueous samples utilizing pre-column derivatization to their phenylthioureas and high performance liquid chromatography

Bhushan Sahasrabuddhey, Archana Jain, Krishna K. Verma · The Analyst · 1999 · 91 citations

Solvent Extraction, Engineering, C18 Column +20

Liquid-phase microextraction–gas chromatography–mass spectrometry for the determination of bromate, iodate, bromide and iodide in high-chloride matrix

Kishan Reddy-Noone, Archana Jain, Krishna K. Verma · Journal of Chromatography A · 2007 · 89 citations

Halogenation, Environmental Chemistry, Engineering +11

Single drop microextraction or solid phase microextraction–gas chromatography–mass spectrometry for the determination of iodine in pharmaceuticals, iodized salt, milk powder and vegetables involving conversion into 4-iodo-N,N-dimethylaniline

Pragya Das, Manju Gupta, Archana Jain et al. · Journal of Chromatography A · 2003 · 85 citations

Gas Chromatography, Iodine Deficiency Disorders, Mass Spectrometry +8

Salting-out assisted liquid–liquid extraction for the determination of biogenic amines in fruit juices and alcoholic beverages after derivatization with 1-naphthylisothiocyanate and high performance liquid chromatography

Archana Jain, Manju Gupta, Krishna K. Verma · Journal of Chromatography A · 2015 · 71 citations

Food Chemistry, Solvent Extraction, Separation Science +9

Salt-assisted liquid–liquid microextraction with water-miscible organic solvents for the determination of carbonyl compounds by high-performance liquid chromatography

Manju Gupta, Archana Jain, Krishna K. Verma · Talanta · 2009 · 66 citations

Solvent Extraction, Carbonyl Compounds, Chemical Engineering +12