More than 80% of analysis time is spent on sample collection and sample preparation, so
sample preparation is a critical part of the analytical process. Traditionally, liquid-liquid …

This review mainly focuses on the development and application of ordered mesoporous
silica materials for solid-phase extraction in recent years. It overviews not only bare …

Determination of analytes at trace levels in complex samples (eg biological or contaminated
water or soils) are often required for the environmental assessment and monitoring as well …

Abstract Metal-organic frameworks (MOFs), composed of metal ions and organic connector,
are a new group of novel porous materials. In light of their advantageous features (eg, high …

Solid phase microextraction find increasing applications in the sample preparation step
before chromatographic determination of analytes in samples with a complex composition …

Biogenic amines (BAs) are nitrogenous low molecular weight organic bases and they have
an aliphatic, aromatic, or a heterocyclic structure. Biogenic amines are produced by the …

Since the first report in 1991, carbon nanotubes (CNTs) have shown great possibilities for a
wide variety of processes and applications, which include their use as electrodes, sensors …

Over time, new materials have been used and incorporated in a wide variety of analytical
processes. This century, technology has produced novel nanomaterials with unique …

Sample pretreatment is considered the most significant procedure in analyzing and
detecting trace targets from complicated matrices. Aerogels display remarkable properties …

Analytical chemists are faced with the daunting challenges of accurately monitoring the state
of the environment and the processes taking place in it and of determining an enormous …