Archana Jain
Rani Durgavati University
Analytical chemistryDetection limitGas chromatographyNuclear chemistryInorganic chemistryHigh-performance liquid chromatographyChemistryGas chromatography–mass spectrometryBromideDerivatizationSolid-phase microextractionSample preparationIodideIodateSpectrophotometryAscorbic acidReagentChromatographyExtraction (chemistry)Solid phase extraction
58Publications
23H-index
1,367Citations
Publications 56
Newest
#1Manju Gupta (St. Aloysius College)
#2Archana Jain (Rani Durgavati University)H-Index: 23
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
view all 3 authors...
Abstract null null A novel method based on diffused reflectance Fourier-transform infrared spectroscopy (DRS-FTIR) was employed for iodate determination in food grade salt and food products. The method attained sensitivity that was comparable to or better than that in most of the contemporary spectrophotometric methods. This was realized through a combination of azo dye formation and dispersive liquid–liquid microextraction of dye when a 37-fold enrichment was obtained. FT-IR enabled integrating...
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#1Nisha Sharma (Savitribai Phule Pune University)H-Index: 5
#2Archana Jain (Rani Durgavati University)H-Index: 23
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
view all 3 authors...
Strategies have been used in this work for rapid and precise extraction of polycyclic aromatic hydrocarbons (PAHs) from grilled meat. Samples were pre-extracted with acetonitrile/potassium hydroxide under microwave irradiation, and after dilution with water subjected to two alternative pre-concentration and clean-up methods. In the first method, the extract was treated with hydrophilic deep eutectic solvent (DES) of choline chloride:phenol (1:2, molar ratio), and the extract phase separated by s...
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#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Soumitra Soni (Rani Durgavati University)H-Index: 2
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
view all 3 authors...
Abstract The Berthelot reaction for ammonia is revisited with the aim of miniaturization and addressing interferences as encountered with food and water samples. Headspace single drop microextraction of ammonia in phosphoric acid served to attain selectivity in complex matrices, and liquid-liquid microextraction of red or blue indophenol species into 1-octanol-isooctane (60:40, v/v) resulted into high sensitivity. Fiber-optics-based cuvetteless micro-spectrophotometry has been used for colorimet...
6 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Krishna K. Verma (Rani Durgavati University)H-Index: 24
Abstract After the realization of extraction in a microdrop and development of single-drop microextraction as a technique potentially carried out under diverse modes in accordance with the nature of analytes, and the possibility of final analysis by a range of instrumental methods, the whole concept has received wide acceptance. A consolidation of efforts has enhanced the capability of this technique by advancements in configurational flexibilities of devices and control over solvent drop dislod...
9 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Krishna K. Verma (Rani Durgavati University)H-Index: 24
Abstract Covering the literature from 2011 until recently, this review highlights the analytical strategies that have been adopted for the extraction and analysis by high performance liquid chromatography comprising without or with derivatization of biogenic amines in real samples of food and beverages. The alternative ways of detection by tandem mass spectrometry, potential of multiple reaction monitoring and extracted ion chromatograms have been utilized when analyses performed without any der...
8 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Soumitra Soni (Rani Durgavati University)H-Index: 2
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
view all 5 authors...
Combined SDME and SPME worked as an elegant strategy to inject a large sampled mass of analytes into a GC. After headspace SDME of methyl derivatives of phenol, chlorophenols, methylphenols and other substituted phenols into 10 μL of solvent drop (1-butanol), the extract was subjected to headspace SPME (DVB/CAR/PDMS, 30/50 μm, fiber) for convenient transfer of analytes to the fiber and then into the GC. This combination resulted in achieving a high sensitivity of detection for a small volume (0....
10 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Manju Gupta (Rani Durgavati University)H-Index: 11
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
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Abstract A new method for determining biogenic amines in fruit juices and alcoholic beverages is described involving reaction of biogenic amines with 1-naphthylisothiocyanate followed by extraction of 1-naphthylthiourea derivatives with water-miscible organic solvent acetonitrile when solvents phase separation occurred using ammonium sulphate, a process called salting-out assisted liquid–liquid extraction. The extract was analyzed by high-performance liquid chromatography with UV detection at 25...
46 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Soumitra Soni (Rani Durgavati University)H-Index: 2
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
view all 3 authors...
To deal the stubborn problem arising from oily matrix of cosmetics in the chromatography of parabens, an efficient, rapid, and economic sample preparation method is proposed involving separation of matrix material by extraction with 1 mL of isooctane/1-octanol (50:50, v/v) in the presence of 1 mL of 1 mol/L sodium hydroxide, and centrifugation. Then, parabens in the alkaline solution were preconcentrated, after acidification, by liquid–liquid–liquid microextraction using 200 µL of isooctane/1-oc...
4 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Kishan Reddy-Noone (Rani Durgavati University)H-Index: 5
Last. Krishna K. Verma (Rani Durgavati University)H-Index: 24
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Abstract A novel and highly selective method has been developed for the determination of aromatic primary amines by their conversion to dithiocarbamates by reaction with carbon disulphide, and then to isothiocyanates, which are volatile, by heating in the presence of a heavy metal ion. Zinc(II) was selected owing to its low toxicity and optimum yield of isothiocyanates. The latter were sampled by headspace-solid phase microextraction (HS-SPME) on divinylbenzene-carboxen-polydimethylsiloxane fibr...
14 CitationsSource
#1Archana Jain (Rani Durgavati University)H-Index: 23
#2Krishna K. Verma (Rani Durgavati University)H-Index: 24
Abstract During the past fifteen years since its introduction, single-drop microextraction has witnessed incessant growth in the range of applications of samples preparation for trace organic and inorganic analysis. This was mainly due to the array of modes that are available to accomplish extraction in harmony with the nature of analytes, and to use the extract directly for analysis by diverse instrumental methods. Whilst engineering of novel sorbent materials has expanded the sample capabiliti...
149 CitationsSource