It has been reposed (8, 9, 10) that by boiilng sulfonic acid type ion exchage resin with certain plant drugs, the alkaloids in the latter could be transferred quantitatively to the resin and could be determined subsequently In this paper a1e reported the results obtained with ion cxdlange resms nt sulfonic acid typc and an ion exchange fabric of phosphoric acid type Nine to ten kinds of plant drugs were studied in each casc Five uf theset Areca catechu L., Fritillaria thunbergii Miq., Stemona lobgroga Lout., Sopholra flavescens Ain. And Leonurus heteropbyllus Sweet, could be determined by ion exchange rCSIDS and tour, namelv. Atropa belladonna L., Areca calecku L., Leonurus hetcrophyUus Sweet and Coptis chinensls Franch, by thc ion exchange fabric. Where the method worked, it was simple ranid and gave the same results as those obtalned with the pharmacopeiacal methods.

本文研究了在不同pH的底液中，一些生物碱（鸟头碱、小黎碱、番术蟹础、幸可宁、白届菜碱、那可汀、奎宁）与四苯硼钠闻反应条件，观察了二者形成沉淀的关系，通过试验，提出在进行生物蹴滴定时，根据生物碱的性强强弱，可计算出底液适宜的pH，井提出以四苯硼钠滴定生物碱的安培方法。

洋地黄叶提出物在甲酰胺作固定相的畦藻土薄层上，甩氧仿-丙酮-醋酸乙酯-乙醇-甲酰胺（8∶2∶0.5∶0.5∶饱和），破氯仿-丁醇-甲酰胺（9∶1∶饱和），破氢仿-醋酸乙酯-革-甲酰胺（1∶3∶2∶饱和）作展开剂，分别分离毛花洋地黄-级甙，紫花洋地黄-般甙，或二级甙。晨开后的板，于100℃烤去甲酰胺，碘蒸气显点，用吸取嚣将色点吸下，以咕吨氢酵的冰醋酸溶液洗脆。洗脱菔申加凡-定盘盐酸后，显色稠定。冒测定了六种纯强心甙的回牧率，除羟基洋地盘毒甙因色点有拖尾，结果儡低，为87.7%外；毛花洋地黄甙甲、乙、丙，洋地黄毒甙，异羟基洋地蒉毒甙等的回收率均在94.9-97.6%间，标准偏差0.6-2.6%。

本文用GLC等方法鉴定和鉴定了海州香薷挥发油中对聚撒花素（10.43%），百里香酣（30.05%），香荆拌酚（33.39%），ɑ-反式-香柠檬烯（1.64%）等12个成分，井与川香薷挥发料I的成分进行了分析比较。

作对黄连离子选择电极进行了研制。用这种电极测定黄连素有简便快速的特点。膜用聚氯乙烯为基体，邻苯二甲酸丁醑为增塑剂，黄连素一四苯硼盐为电活性物质。所制成的电极对药根碱，小蘖胺殛其它一些生物碱具有一定的选择性，可不经预先分离直接测定片剂中黄连素的含量。

本文介绍了棉酚的极谱测定方法。棉酚在柠檬酸-磷酸氢=钠缓冲液中可产生一还原波，在pH值为2.60时，其E1/2为一1.4V（SCE），实验证明该波为受扩做控制的单电子可逆波，推耐为棉酚芳醛基之一的单电子还原。所建立的方培较简便，快速，灵敏。

对HPLC分离及定量测家定人屎中雄激素及蛋白同化激素的方法进行了韧步研究。确定了六种甾体激素的分离条件及内标定量方法。固定相为C8合硅腔，甲醇-乙腈水（4∶5∶8）恒溶剂冼脱，程序流速。紫外检盘测器波长254nm。检测限可至1ng以下。本法采用Sep-Pak C18小柱进行尿样净化，回收率高而且稳定。操作简便快速。对屎样甾体葡萄甙结台物的酶促水解条件也进行了初步探索。

棉籽中棉酚的测定方法有重量法，比色法，菲林试剂氧化法，薄层色谱法，纸色谱法，化学速率-分光光度法等。其中比色法应用较普遍，但由于棉籽中棉酚的类似物较多，不经分离测定，所得结果一般偏高，其它方法也多由于烦琐而不适用。为了寻找一种快速、灵敏、选择性好的测定方法，我们对TLC-溴库伦法测定棉籽中棉酚的含量进行了研究。

The polarogaphic be haviour of gossypol in HCI-aceton solution has been studied. One wave is obtained in 0.5N HCI-acetone solutin. The half-wave potential is about-0.4V vs.SCE, more positive than that for normal reduction wave of aromatic aldehyde, and it shifts toward more negative value with decreasing acidity and increasing awter content of the solution. The wave height was found to decline markedly with increase of water contetnt and dec-rese of acidity. It has been postulated that in nonaqueous and strong acidic system gossypol rcombines with hydrogen ion to form the corresponding Bronsted acid. As there are positive chargesin the structure, it is more easly reduced at the electrode and shows an abnormal halfwave potential. A second wave can also be observed in water-containing medium with a halfwave potential of about-1.0V vs SCE.