Naoto Furasawa

This article describes a space-saving, quick, and inexpensive sample preparation technique followed by a high performance liquid chromatography (HPLC) method with a 100% water mobile phase and photodiode array (PDA) detection for quantifying acetamiprid and its N-desmethyl metabolite, IM-2-1, in cow’s milk. The analytes were extracted from the sample and deproteinized using a handheld ultrasonic homogenizer with 5% (w/v) trichloroacetic acid solution, purified using a centrifugal monolithic silica spin minicolumn, and quantified within 20 min per sample. The accuracy and precision are well within the international method acceptance criteria.

A novel "green chromatography" method for analysing melamine in milk is described. The method uses 100% water as the eluent and in the sample preparation stage and is reported to be a reliable and cost-effective method for laboratories in developing countries.

High recovery, reproducibility, and cost savings are among the advantages of this environmentally friendly method.

This article describes a simple, rapid and inexpensive method of sample preparation followed by RP-HPLC in beef.

A method of sample preparation followed by reversed-phase high performance liquid chromatography (RP HPLC) with diode array (DA) detection.

Reducing or, if possible, eliminating the use of organic solvents is an important goal in terms of environmental conservation, human health and the economy.

The authors have developed a method of determining zeranol residues in bovine tissues without using toxic chemicals, organic solvents, and reagents in sample preparation and reversed-phase HPLC separation.

Whether in industrial nations or developing countries, an international harmonized method for drug residue monitoring in animal products is needed.

The authors describe a method for determining sulfamethazine residue in pork using 100% water in both sample preparation and HPLC separation.

This article presents an organic solvent–free method for the determination of oxytetracycline residue in cow's milk using HPLC.