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  1. No Access

    Article

    Comparative Evaluation of QuEChERS Method Coupled to DLLME Extraction for the Analysis of Multiresidue Pesticides in Vegetables and Fruits by Gas Chromatography-Mass Spectrometry

    An economical and rapid multiresidue method has been developed using quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure combined with dispersive liquid-liquid microextraction (DLLME) for the q...

    Satyajeet Rai, Abhishek Kumar Singh, Anshuman Srivastava… in Food Analytical Methods (2016)

  2. No Access

    Article

    Simultaneous determination of multiclass pesticide residues in human plasma using a mini QuEChERS method

    Blood is one of the most assessable matrices for the determination of pesticide residue exposure in humans. Effective sample preparation/cleanup of biological samples is very important in the development of a ...

    Anshuman Srivastava, Satyajeet Rai… in Analytical and Bioanalytical Chemistry (2017)

  3. No Access

    Article

    Inexpensive, effective novel activated carbon fibers for sample cleanup: application to multipesticide residue analysis in food commodities using a QuEChERS method

    Phenolic resin based activated carbon fibers (ACFs) were applied for the first time as a reversed-dispersive solid-phase extraction (r-DSPE) sorbent. A modified quick, easy, cheap, effective, rugged, and safe ...

    Shiv Singh, Anshuman Srivastava… in Analytical and Bioanalytical Chemistry (2018)

  4. No Access

    Article

    CVD grown carbon nanofibers: an efficient DSPE sorbent for cleanup of multi-class pesticide residue in high fat and low water commodities by QuEChERS using GC-ECD

    An inexpensive, effective, and efficient dispersive solid-phase extraction (DSPE) sorbent was developed as an alternative to traditionally used sorbents (primary secondary amine and C18) for fatty matrices usi...

    Minu Singh, Anshuman Srivastava, Yogesh Kumar Sharma, Shiv Singh… in Microchimica Acta (2020)

  5. No Access

    Article

    Optimizing Solvents and Derivatizing Agents for Metabolomic Profiling of Human Plasma Using GC–MS

    Metabolites provide a rich source of information regarding individual physiological states influenced by differences in diet, disease, health, and lifestyle. Effective sample preparation is a crucial step for ...

    Anshuman Srivastava, Alok Mishra, Ashutosh Shrivastava in Chromatographia (2023)