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請教“微溶”和“略溶”的英語怎么說
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| 請教下,sparingly soluble in water是說略溶于水嗎?還是微溶于水? |
» 搶金幣啦!回帖就可以得到:
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木蟲之王 (文壇精英)
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European Pharmacopoeia 6.0關(guān)于溶解度的規(guī)定: SOLUBILITY For this test a maximum of 111 mg of substance (for each solvent) and a maximum of 30 ml of each solvent are necessary. Dissolving procedure Shake vigorously for 1 min and place in a constant temperature device, maintained at a temperature of 25.0 ± 0.5 °C for 15 min. If the substance is not completely dissolved, repeat the shaking for 1 min and place the tube in the constant temperature device for 15 min. Method Weigh 100 mg of finely powdered substance (90) (2.9.12) in a stoppered tube (16 mm in internal diameter and 160 mm long), add 0.1 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is very soluble. If the substance is not completely dissolved, add 0.9 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is freely soluble. If the substance is not completely dissolved, add 2.0 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is soluble. If the substance is not completely dissolved, add 7.0 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is sparingly soluble. If the substance is not completely dissolved, weigh 10 mg of finely powdered substance (90) (2.9.12) in a stoppered tube, add 10.0 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is slightly soluble. If the substance is not completely dissolved, weigh 1 mg of finely powdered substance (90) (2.9.12) in a stoppered tube, add 10.0 ml of the solvent and proceed as described under Dissolving Procedure. If the substance is completely dissolved, it is very slightly soluble. 中國藥典2005版二部標(biāo)準(zhǔn)凡例中關(guān)于溶解度的規(guī)定: 溶解度是藥品的一種物理性質(zhì)。各正文品種項(xiàng)下選用的部分溶劑及其在該溶劑中的溶解性能,可供精制或制備溶液時參考;對在特定溶劑中的溶解性能需作質(zhì)量控制時,應(yīng)在該品種檢查項(xiàng)下另作具體規(guī)定。藥品的近似溶解度以下列名詞表示: 極易溶解 系指溶質(zhì)1g(ml)能在溶劑不到1ml中溶解; 易溶 系指溶質(zhì)1g(ml)能在溶劑1~不到10ml中溶解; 溶解 系指溶質(zhì)1g(ml)能在溶劑10~不到30ml中溶解; 略溶 系指溶質(zhì)1g(ml)能在溶劑30~不到100ml中溶解; 微溶 系指溶質(zhì)1g(ml)能在溶劑100~不到1000ml中溶解; 極微溶解 系指溶質(zhì)1g(ml)能在溶劑1000~不到10000ml中溶解; 幾乎不溶或不溶 系指溶質(zhì)1g(ml)在溶劑10000ml中不能完全溶解。 試驗(yàn)法:除另有規(guī)定外,稱取研成細(xì)粉的供試品或量取液體供試品,置于25℃±2℃一定容量的溶劑中,每隔5分鐘強(qiáng)力振搖30秒鐘;觀察30分鐘內(nèi)的溶解情況,如看不見溶質(zhì)顆;蛞旱螘r,即視為完全溶解。 所以歐洲藥典sparingly soluble系指溶質(zhì)100mg能在溶劑3.0ml~10ml中完全溶解,屬于中國藥典“略溶”的范圍,但不完全等同中國藥典中的“略溶”(試驗(yàn)方法略有不同)。 |
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