Microextraction techniques

Microextraction Techniques for Forensic Drug Analysis in Saliva

Forensic drug analysis involves qualitative and quantitative analysis of drugs of abuse and their metabolites in various complex biological matrices such as biological fluids and seized materials. Drugs of abuse such as opioids, cannabinoids, cocaine, amphetamines, hallucinogens and benzodiazepines are generally analyzed in biological fluids e.g. urine and plasma. While urine is efficient for i...

Microextraction Techniques as a Sample Preparation Step for Metal Analysis

Microextraction techniques used in the procedures for determining organomercury and organotin compounds in environmental samples.

Due to human activities, the concentrations of organometallic compounds in all parts of the environment have increased in recent decades. The toxicity and some biochemical properties of mercury and tin present in the environment depend on the concentration and chemical form of these two elements. The ever-increasing demand for determining compounds at very low concentration levels in samples wi...

Novel Microextraction Techniques for Bioanalysis of Neurotransmitters and Biomarkers in Biological Fluids

Sample preparation (sample pre-treatment) is the initial step and an essential part in bioanalysis procedure. The main role of sample preparation is to extract and transfer the analyte(s) of interest from a complex matrix to a purified media such as a pure solvent for analysis and quantification. Biological fluids are complex and contain, in addition to the target analyte(s), many different unw...

A Review on Microextraction Techniques for Selected Triazole Fungicides Determination in Water and Food Samples

Triazole fungicides are systemic fungicides applied to protect crops from fungus infections. Its use must be controlled due to the potential harmful effects in environment and human health. Before determination with a chromatographic system, analyte must be isolated and preconcentrated with an extraction step. This review presents the most used microextraction techniques for those compounds in ...