Determination of diquat by flow injection–chemiluminescence
نویسندگان
چکیده
منابع مشابه
The toxicity of diquat.
Clark, D. G. and Hurst, E. W. (1970). Brit. J. Industr. Med., 27, 51-55. The toxicity of diquat. The acute toxicity of diquat has been assessed in several species. The oral LD50 ranged from about 30 mg/kg in cattle to 231 mg/kg in the rat. Large doses of diquat gave rise to symptoms indicative of an action on the central nervous system, but smaller doses did not suggest an obvious mode of actio...
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Sulphide was determined spectrophotometrically at 628 nm and pH 6.7 based on its catalytic reduction of toluidine blue in the presence of Se(IV) using a flow injection system. After optimization of the measuring conditions the calibration curve was found linear up to 25 mg/mL and the detection limit was 0.3 mg/mL (30 mL injections). The ...
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BACKGROUND Since the introduction of diquat in agriculture practice in 1960's, about 40 cases of poisoning have been described in detail in medical literature. CASE REPORT We presented two cases. A case one, a 35-year-old, previously healthy, woman ingested 14% diquat solution. The poisoning had fulminant course, consisted of severe stomachache, vomiting, cardiocirculatory shock, respiratory ...
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Diquat dibromide is used for desiccation of seed crops and potatoes, and for weed control of non-crop terrestrial and aquatic areas. The absorbed daily dosages for various work tasks were estimated in the exposure assessment document for diquat dibromide and range from 0.03 to 7.8 ug/kg/day. Based on the adjusted Estimated-No-Effect-Level (ENEL) of 33 ug/kg/day for developmental toxicity in rab...
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چکیده هدف از این کار بررسی الکترواکسیداسیون کتکول و مشتقات آن در حضور 4-فنیل سمی کاربامازید بوده است اکسیداسیون کتکولها ترکیبات نا پایدار کینونها را تولید می کنند که این ترکیبات می تواند در واکنش مایکل بعنوان پذیرنده نوکلئوفیل عمل نمایند. در ادامه اکسایش کتکولهای (a-c1) را درحضور 4-فنیل سمی کاربامازید در محلول آب/استونیتریل (90/10)بوسیله ولتامتری چرخه ای و کولن متری در پتانسیل ثابت مورد بررسی ...
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ژورنال
عنوان ژورنال: Analytical and Bioanalytical Chemistry
سال: 2009
ISSN: 1618-2642,1618-2650
DOI: 10.1007/s00216-009-2609-z