共查询到20条相似文献,搜索用时 62 毫秒
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目的:提高链霉素B的检出。方法:《中国药典》2005年版二部。结果:链霉素B易检出。结论:通过对关键环节的注意使链霉素B的检出更方便。 相似文献
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院内制剂硫酸链霉素眼液在临床应用由来已久,且其疗效也确切,但对其稳定性的研究报道却极为罕见。早期报道^(1)其有效期短,不宜长期使用,且以氯化钠溶液为溶煤的制剂极易变色。而其它载有硫酸链霉素滴眼液处方的文献^(2~4)皆对其稳定性无任何报道,虽有文献^(5)对其稳定性进行了考察,但亦报道以氯化钠溶液为溶媒的制剂极易变色。而临床配制的硫酸链霉素滴眼液大多以氯化钠溶液为溶媒,故而硫酸链霉素滴眼液在临床 相似文献
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紫外-可见分光光度法快速测定注射用硫酸链霉素的含量 总被引:1,自引:1,他引:1
目的采用紫外-可见分光光度法测定硫酸链霉素的含量。方法利用硫酸链霉素的专属反应—麦芽酚反应,用硫酸铁铵溶液作为显色剂,检测波长为528 nm。结果供试品含量在2.0054~10.272 mg的范围内呈良好的线性关系,相关系数r=0.9999,加样回收率:99.0%,RSD=0.5%(n=6)。结论该法简便、灵敏、准确,可作为该制剂的快速测定方法。 相似文献
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Calcara M Enea V Pricoco A Miano F 《Journal of pharmaceutical and biomedical analysis》2005,38(2):344-348
An effective method based on capillary electrophoresis (CE) for the determination of netilmicin sulphate in commercial ophthalmic formulations was developed and validated. The use of a polymer-coated capillary and a non-absorbing running buffer permitted the elution of netilmicin in cationic mode at pH 3.0 and with direct UV detection at lambda=195 nm. Since pre-treatment of the samples is not required, this procedure may be straightforwardly applied to the other aminoglycosides provided that their extinction coefficient is not too low. 相似文献
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We have developed a simple, rapid and sensitive method for the study of sulphate conjugation in isolated liver cells based on the incorporation of 35S from [35S]sulphate. Excess [35S]sulphate is removed by a barium precipitation procedure, leaving [35S]sulphate conjugates in solution. We have used this method to examine the kinetics of sulphation of N-acetyl-p-aminophenol (acetaminophen), 4-nitrophenol and 1-naphthol in isolated rat liver cells. The efficiency of recovery of the sulphate conjugates was greater than 86%. The method is applicable to the quantitative study of sulphate conjugation of any substrate which forms a sulphate conjugate that is soluble in the presence of barium, without the need for standards or radiolabelled sulphate acceptors. 相似文献
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《齐鲁药事》2018,(1)
目的建立穿山甲饮片违法掺加硫酸盐或盐酸盐增重的离子色谱检测方法。方法采用阴离子色谱-抑制电导法测定穿山甲饮片中的硫酸根(SO_4~(2-))和氯离子(Cl~-),色谱柱为IonPac AS11-HC(4 mm×250 mm),淋洗液为10 mmol·L~(-1)的氢氧化钾溶液,等度洗脱,电导检测器,流速为1.0 mL·min~(-1)。结果建立了穿山甲饮片中SO_4~(2-)和Cl~-的阴离子色谱检测方法,SO_4~(2-)和Cl~-均在0.1~100μg·mL~(-1)范围内线性关系良好(r=1.000),平均回收率分别为101.8%和100.9%,RSD为2.2%和2.4%(n=6)。对58批穿山甲饮片进行检测,根据专属性等考察结果,6批样品SO_4~(2-)严重超标,为非法炮制增重。结论该法灵敏度高、专属性强,可用于检测穿山甲饮片中非法掺加硫酸盐或盐酸盐增重,为其他中药材非法掺加无机盐增重的检测提供参考。 相似文献