2種未知農藥的鑒定與分析青島科技大學本科畢業論文-資料下載頁

　　

【正文】 鋅含量 = 在有15 mL緩沖溶液和幾滴指示劑的溶液中， mol﹒L 1的硫酸鎂溶液（c mL） mL EDTA。藍色溶液中剛出現紫色時即為滴定終點。錳含量 = 式中：N = 硫酸鎂的摩爾數5 砷。MT 99代森錳鋅可濕性粉劑34/WP/M/1 取樣。至少取200 g。裝滿瓶并在20 ℃以下條件儲藏不超過4周。2 鑒別試驗。同代森錳鋅原藥34/TC/M/2。3 代森錳鋅。同代森錳鋅原藥34/TC/M/3。4 錳和鋅。同代森錳鋅原藥34/TC/M/4。5 砷。MT 99。6 懸浮率。除了25mL懸浮液中代森錳鋅的質量，余同代森錳可濕性粉劑61/WP/M/5，CIPAC E 120頁：25mL懸浮液中代森錳鋅的質量= 5N(tb)=Q 4 g。代森錳鋅水分散性粒劑34/WG/M/1 取樣。至少取500 g。裝滿瓶并在20 ℃以下條件儲藏不超過4周。2 鑒別試驗。同代森錳鋅原藥34/TC/M/2。3 代森錳鋅。同代森錳鋅原藥34/TC/M/3。4 錳和鋅。同代森錳鋅原藥34/TC/M/4。5 砷。MT 99。6 懸浮率。除了25mL懸浮液中代森錳鋅的質量，余同代森錳可濕性粉劑61/WP/M/5，CIPAC E 120頁：25mL懸浮液中代森錳鋅的質量= 5N(tb)=Q 5 g。代森錳鋅懸浮劑＊ 34/SC/M/1 取樣。至少取500 g。裝滿瓶并在20 ℃以下條件儲藏不超過4周。2 鑒別試驗。同代森錳鋅原藥34/TC/M/2。3 代森錳鋅。同代森錳鋅原藥34/TC/M/3。4 錳和鋅。同代森錳鋅原藥34/TC/M/4。5 砷。MT 99。6 懸浮率。除了25mL懸浮液中代森錳鋅的質量，余同代森錳可濕性粉劑61/WP/M/5，CIPAC E 120頁：25mL懸浮液中代森錳鋅的質量= 5N(tb)=Q 6 g。代森錳鋅粉劑＊ 34/DP/M/1 取樣。至少取1 kg。裝滿瓶并在20 ℃以下條件儲藏不超過4周。2 鑒別試驗。同代森錳鋅原藥34/TC/M/2。3 代森錳鋅。同代森錳鋅原藥34/TC/M/3。4 錳和鋅。同代森錳鋅原藥34/TC/M/4。5 砷。MT 99。6 干篩試驗 除了殘存的代森錳鋅質量，余同代森錳粉劑61/DP/M/5，CIPAC E 121頁：殘存的代森錳鋅質量= 5N(tb) 7 g。原 文MANCOZEB34ISO mon name: Mancozeb Chemical position: Coordination plex of zinc and maneb containing 20 % manganese and % zinc . : Deposes .: Negligible Solubility: Insoluble in water and most organic solvents Description: Yellow powderStability: Deposed under acid conditions Formulations: Wettable powders, water dispersible granules, suspension concetrantes and dustable powders MANCOZEB TECHNICAL34/TC/M/1 Sampling. Take at least 200 g. Fill the bottles pletely and store them (not longer than 4 weeks) at a temperature below 20 ℃.2 Identity tests. CS2 evolution. MT 153. Spot test. MT 130. Identification of amines. MT 152. Zinc. MT 154. 3 Mancozeb. As for maneb technical 61/TC/M/3,CIPAC . except: (c) Calculation Mancozeb content = 4 Manganese and zinc OUTLINE OF METHOD The sample is dissolved in a known amount of EDTA solution in excess. The excess is titrated with standard magnesium sulphate, using Mordant black 11 as indicator, to determine total metals. Potassium cyanide is added and the solution is titrated again with magnesium sulphate to determine the zinc. The manganese is determined from the difference of the titres. REAGENTS Ammonia buffer solution pH 10. MT 107 EDTA mol﹒L 1. RE Magnesium sulphate standard solution mol﹒L 1. Dissolve magnesium sulphate heptahydrate ( g) in water and make up to 11. Mordant black 11 solution. RE Ascorbic acid Potassium cyanide (KCN) APPARATUS Conical flask 400 mL, wide mouth PROCEDURE Weigh (to the nearest mg) 500 177。 50 mg (w mg) of sample, transfer to a conical flask (400 mL) with water (about 50 mL) and add EDTA solution ( mL). Bring to the boil and swirl to dissolve as pletely as possible. Cool to room temperature, add ascorbic acid (1 to g), swirl to dissolve and add ammonia buffer solution (10 mL). Add Mordant black indicator (a few drops) and titrate the excess EDTA with magnesium sulphate solution ( mol﹒L 1, a mL), the end point is the first tinge of purple in the blue green resulting from the yellow of the solution and the blue of the indicator. Adjust the end point as accurately as possible using a microburette and add KCN (about 2 g). Titrate the liberated EDTA with magnesium sulphate solution ( mol﹒L 1) added from the microburette (b mL). Zn content = Titrate EDTA ( mL) with magnesium sulphate solution ( mol﹒L 1, c mL) in the presence of buffer (15 mL) and a few drops of indicator. The end point is the first tinge of purple appearing in the blue colour. Mn content = where: N = molarity of the magnesium sulphate 5 Arsenic. MT 99. MANCOZEB WETTABLE POWDERS 34/WP/M/1 Sampling. Take at least 500 g. Fill the bottles pletely and store them (not longer than 4 weeks) at a temperature below 20 ℃. 2 Identit tests. As for mancozeb technical 34/TC/M/2. 3 Mancozeb. As for mancozeb technical 34/TC/M/3. 4 Manganese and zinc. As for mancozeb technical 34/TC/M/4 5 Arsenic. MT 99. 6 Suspensibility. As for maneb wettable powders 61/WP/M/5. CIPAC E, p .120, except: Mass of mancozeb in the 25 mL of suspension = 5N(tb)=Q 4 g. MANCOZEB WATER DISPERSIBLE GRANULES34/WG/M/1 Sampling. Take at least 500 g. Fill the bottles pletely and store them(not longer than 4 weeks) at a temperature below 20 ℃.2 Identity for mancozeb technical 34/TC/M/2.3 for mancozeb technical 34/TC/M/3.4 Manganese and for mancozeb technical 34/TC/M/4.5 .6 for maneb wettable powders 61/WP/M/5，CIPACE，E，except:Mass of mancozeb in the 25 mL of suspension= 5N(tb)=Q 5 g.MANCOZEB SUSPENSION CONCENTRATES ＊ 34/SC/M/ 1 Sampling. Take at least 500 g. Fill the bottles pletely and store them (not longer than 4 weeks) at a temperature below 20 ℃ .2 Identity tests. As for mancozeb technical 34/TC/M/2. 3 Mancozeb. As for mancozeb technical 34/TC/M/3. 4 Manganese and zinc. As for mancozeb technical 34 TC/M/4. 5 Arsenic. MT 99. 6 Suspensibility. As for maneb wettable powders 61WP/M/5, CIPAC E,p. 120, except: Mass of mancozeb in the 25 mL of suspension = 0135 5 N (tb) = Q6 g MANCOZEB DUSTABLE POWDERS ＊ 34/DP/M/ 1 Sampling. Take at least 1 kg. Fill the bottles pletely and store them (not longer than 4 weeks) at a temperature below 20 ℃. 2 Identity tests. As for mancozeb technical 34/TC/M/2. 3 Mancozeb. As for mancozeb technical 34/TC/M/3. 4 Manganese and zinc. As for mancozeb technical 34/TC/M/4. 5 Arsenic. MT 99. 6 Dry seive test. As for maneb dustable powders 61/DP/M/5, CIPAC E, . except: Mass of mancozeb in the residue = 01355 N (tb) 7 g. 青島科技大學本科畢業設計（論文）任務書畢業設計(論文)題目2種未知農藥的鑒定與分析題目類型應用研究課題來源自選院（部）化工學院指導老師范志先專 業化學工程與工藝班 級2005級1班學生學號0501010229學生姓名于 晨畢業設計(論文)的主要任務及目標：1 掌握紅外光譜儀、原子吸收光譜儀、高效液相色譜儀操作規程2 學習使用紅外光譜數據庫，掌握譜圖的檢索和解析3 了解2種未知農藥的基本信息、用途及類別4 利用實驗室現有的儀器設備對2種未知農藥的有效成分進行定性確證5 對定性后的農藥品種，如有可能進行定量分析，確定其有