Microchemical determination of agricultural chemicals

A microchemical determination of desoxyribonucleic acid.

Microchemical Deoxyribonucleic Acid Determination in Individual Cells

A method for the quantitative determination of DNA in the 50 to 500 micromicrog. range is presented. Cells or cell nuclei are isolated individually from fixed tissue by means of micromanipulation. The tissue units in question are extracted in an oil chamber with deoxyribonuclease solution. The extracts are evaporated to dryness and redissolved to lens-shaped drops, the DNA contents of which are...

Suicide Attempts by Agricultural Chemicals

Forty three patients (42%) used agricultural chemicals as a method of suicide over nine and a half years (from Oct. 1981 to March 1991), and most cases were reported in June (agricultural activity) and December (year's end). The highest prevalence was inpatients in their fifties (34.9%). 58.1% of these patients who committed suicide were farmers or had no fixed occupation. Main precipitating fa...

Solutions to Corrosion Caused by Agricultural Chemicals

Corrosion is the deterioration of materials by chemical interaction with their environment. The consequences of corrosion are many and varied. The effects of these on the safe, reliable and efficient operation of equipment or structures are often more serious than the simple loss of a mass of metal. The two main reasons for replacing machinery or equipment include upgrading old equipment and su...

Microchemical identification of amidone.