Quantative determination of free silica in pesticides.
نویسندگان
چکیده
منابع مشابه
determination of maximal singularity free zones in the workspace of parallel manipulator
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولDetermination of concentration of organophosphate pesticides
Pesticides are used extensively in agricultural lands in Northern provinces of Iran which makes river ecosystems more vulnerable to pesticides pollution. This study was conducted in three river estuaries (Babolrud, Tajanrud and Gorganrud), focusing mainly on the concentration levels of organophosphate pesticides (diazinon, malathion, azinphos-methyl) in the muscle tissue of golden mullet fish, ...
متن کاملThe Determination of Pesticides in Wine
According to the state institute for chemical and veterinary analysis of food, “Conventionally grown wine grapes are one of the crops most extensively treated with pesticides” (CVUA Stuttgart). The use of different fungicides and insecticides is commonplace in vineyards across the world to improve crop yields. Maximum residue levels (MRLs) have been established for grapes in many areas in the w...
متن کاملDetermination of Twenty Organophosphorus Pesticides in Wheat Samples from Different Regions of Iran
Background: Organophosphorus pesticides are widely used in agriculture, homes, gardens, and veterinary practices. Extensive application of pesticides in agriculture often results in residues of these compounds being absorbed into the foods, including wheat. The aim of this study was to evaluate the residue levels of 20 organophosphorus pesticides in wheat samples collected from different region...
متن کاملMicro-determination of soluble silica in urine.
Silicon may be determined in solution by the spectrophotometric method of Dienert & Wandenbulche (1923), as modified by King & Stantial (1933). This involves the formation of the yellow silicomolybdate and the reduction of this complex to molybdenum blue by 1-amino-2-naphthol-4sulphonic acid reagent. Measurement of this colour provides a means of determining silicon. A disadvantage of this meth...
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ژورنال
عنوان ژورنال: JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE
سال: 1990
ISSN: 0468-2513,1349-7421
DOI: 10.2185/jjrm.39.28