Comparison of Two Milk Fat Extraction Methods for Pesticide Residue Analysis

Evaluation of two fast and easy methods for pesticide residue analysis in fatty food matrixes.

Two rapid methods of sample preparation and analysis of fatty foods (e.g., milk, eggs, and avocado) were evaluated and compared for 32 pesticide residues representing a wide range of physicochemical properties. One method, dubbed the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method for pesticide residue analysis, entailed extraction of 15 g sample with 15 mL acetonitrile (MeCN)...

Comparison of two hydrodensitometric methods for estimating percent body fat.

This study compared the two following hydrodensitometric methods for estimating percent body fat (%BF): 1) estimation of residual volume (RV) by helium dilution before and after measurement of immersed mass at RV, and 2) determination of immersed mass at a comfortable level of expiration (approximately functional residual capacity) with measurement of the associated gas volume by oxygen dilutio...

Pesticide residue analysis (1999-2000): a review.

The literature of pesticide residue analysis is reviewed selectively for the period 1999-2000. Analyses of a wide range of pesticide classes and sample types, as well as some related organic pollutants, are covered. Studies of exposure and monitoring as well as pesticide degradation, persistance, leaching, mobility, and metabolism studies are included.

Deficit irrigation for corn: a comparison of two methods

Organo-chlorine Pesticide Residues in Human Fat and Human Milk.

Tractors should be provided with safety frames that are strong enough to protect the drivers from being crushed should the vehicles overturn. I wish to thank H.M. Coroner and the Chief Constable of MidWales for the information obtained from the coroner's records and from the police reports of road-traffic accidents. I am grateful to my partners (Drs. T. Brittain and H. G. Davies), and also to D...