Preconcentration and Analytical Methods for Determination of Methyl Tert-Butyl Ether and Other Fuel Oxygenates and Their Degradation Products in Environment: A Review

Hashemi, Sayyed Hossein; Kaykhaii, Massoud; Mirmoghaddam, Majid; Boczkaj, Grzegorz

doi:10.1080/10408347.2020.1753164

Cited by 3 publications

(1 citation statement)

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“…The step allows to focus the compounds in a narrow band that is rapidly transferred to GC column using fast thermal desorption. This created a good peak shape and efficiency of separation, so it increases the resolution as well as the sensitivity of the procedure [34,35].…”

Section: Gas Extraction Techniquesmentioning

confidence: 99%

Modern Sample Preparation Techniques: A Brief Introduction

Sargazi¹,

Hashemi²,

Kaykhaii³

2021

Sample Preparation Techniques for Chemical Analysis

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Due to fast growth in microprocessors, analytical instrumentations in spectroscopy, chromatography, microscopy, sensors and microdevices have been subjected to significant developments. Despite these advances, a sample preparation step is indispensable before instrumental analysis. Main reasons are low sensitivity of the instruments, matrix interferences and incompatibility of the sample with the analytical device. Most of the time spent and most of the errors occurring during a chemical analysis is on sample preparation step. As a result, any improvements in this essential process will have a significant effect on shortening the analysis time and its precision and accuracy and lowering the cost. This introductory chapter intends to draw the readers’ attention to the importance of sample preparation, the procedures of sampling and the source of errors that occur in the course of sampling. The chapter then continues with a heading on sample preparation techniques, including exhaustive and non-exhaustive methods of extraction. Microwave, sonication and membrane-based extraction techniques are more emphasized as exhaustive methods and under a new title, miniaturized methods are discussed. Automation, on-line compatibility and simplification is an important aspect of any sample preparation and extraction which is discussed at the end of this chapter.

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Section: Gas Extraction Techniquesmentioning

confidence: 99%