List of works - Helvécio Costa Menezes

A Simple and Quick Method for the Determination of Pesticides in Environmental Water by HF-LPME-GC/MS.

scientific article published on 28 September 2016

Amino Acid Biosignature in Plasma among Ischemic Stroke Subtypes

scientific article published on 20 January 2019

Determination of polycyclic aromatic hydrocarbons and their nitrated and oxygenated derivatives in coffee brews using an efficient cold fiber-solid phase microextraction and gas chromatography mass spectrometry method

scientific article published on 26 November 2018

Development of a Simple Integrative Carbon Nanomaterial Microextraction Method with GC-MS for Assessing Pesticide Residues in Apples

scientific article published in 2023

Efficient extraction method using magnetic carbon nanotubes to analyze cocaine and benzoylecgonine in breast milk by GC/MS.

scientific article published on 2 November 2017

Environmental and biological determination of acrolein using new cold fiber solid phase microextraction with gas chromatography mass spectrometry.

scientific article published on 15 February 2017

Magnetic N-doped carbon nanotubes: A versatile and efficient material for the determination of polycyclic aromatic hydrocarbons in environmental water samples

scientific article published on 05 March 2015

Magnetic amphiphilic hybrid carbon nanotubes containing N-doped and undoped sections: powerful tensioactive nanostructures

scientific article published on 01 January 2015

Neurochemical study of amino acids in rodent brain structures using an improved gas chromatography-mass spectrometry method

scientific article

New method for the determination of bile acids in human plasma by liquid-phase microextraction using liquid chromatography-ion-trap-time-of-flight mass spectrometry.

scientific article published on 14 February 2015

New passive sampling device for effective monitoring of pesticides in water

scientific article published on 24 December 2018

Saliva biomonitoring using LPME-GC/MS method to assess dentistry exposure to plasticizers

scientific article published on 29 August 2020

Sampling and analysis of metabolomes in biological fluids.