Application of Oscillographic Polarography to Determinationof Organic Phosphorus Pesticide Residues

Analysis of Pesticide Residues by Polarography

Determination of nitrogen- and phosphorus-containing pesticide residues in vegetables by gas chromatography with nitrogen-phosphorus and flame photometric detection after gel permeation chromatography and a two-step minicolumn cleanup.

An efficient and reliable multiresidue method for determining pesticide residues in a large number of vegetable samples was studied. First, the important target compounds for monitoring, 52 nitrogen- and/or phosphorus-containing pesticides, were selected. The sample was extracted with acetonitrile, and the separated acetonitrile layer was cleaned up by a salting-out step. The acetonitrile extra...

Are organic foods safer or healthier than conventional alternatives?: a systematic review.

BACKGROUND The health benefits of organic foods are unclear. PURPOSE To review evidence comparing the health effects of organic and conventional foods. DATA SOURCES MEDLINE (January 1966 to May 2011), EMBASE, CAB Direct, Agricola, TOXNET, Cochrane Library (January 1966 to May 2009), and bibliographies of retrieved articles. STUDY SELECTION English-language reports of comparisons of organi...

A Review of Pesticide Residues in Agricultural and Food Products of Iran

Background & Objectives: The implementation of pest control strategies is essential for reducing food waste and providing fresh safe food product. However, the excessive and uncontrolled usage of pesticides have caused serious environmental and health problems. The aim of this study was to evaluate the level of pesticide residues in food products in Iran via exploring the relevant published wor...

Organic foods contain higher levels of certain nutrients, lower levels of pesticides, and may provide health benefits for the consumer.

The multi-billion dollar organic food industry is fueled by consumer perception that organic food is healthier (greater nutritional value and fewer toxic chemicals). Studies of the nutrient content in organic foods vary in results due to differences in the ground cover and maturity of the organic farming operation. Nutrient content also varies from farmer to farmer and year to year. However, re...