(-)2-苯甲酰基-4-苯基-2-噁唑啉配体及铜配合物的合成

以苯酰氯为原始材料,经过取代,加成,关环反应,合成了(-)2-苯甲酰基-4-苯基-2-噁唑啉,通过质谱,1HNMR和元素分析确定其结构,旋光仪测得目标化合物的比旋光度为-5.81。     

氯化铁催化合成癸二酸二丁酯

在六水三氯化铁存在下,癸二酸和正丁酯反应合成了癸二酸二丁酯。当癸二酸、正丁酯和氯化铁的摩尔比为1：10：0．074,回流分水80分钟,酯收率能够达到91％。     

TritonX-100-氯化锑作基体改进剂火焰原子吸收法测定生物样品中铬

用ＴｒｉｔｏｎＸ－１００－氯化锑为基体改进剂研究了测定生物样品中铬的工作条件。该法不仅使铬的灵敏度提高,而且可消除大量铁和其它共存元素的干扰。同时还克服了某些酸的干扰,使测定线性范围加宽。     

光聚合法合成阳离子型聚丙烯酰胺的研究

以丙烯酰胺(AM)和二甲基二烯丙基氯化铵(DMDAAC)为原料,在紫外灯照射和光引发剂作用下,通过水溶液自由基共聚法合成了水溶性好的阳离子型聚丙烯酰胺。研究了光引发剂用量、单体配比、pH值以及单体总浓度等对产物性能的影响规律,并通过对合成产物固含量、特性粘数、阳离子度等性能指标的测试,确定了本聚合反应体系的最佳工艺条件。用红外光谱和核磁共振氢谱对共聚物进行了结构表征。     

聚合磷硫酸铁的制备及对污水处理的研究

以氧化铁矿为原料,采取直接酸浸溶出,在聚合硫酸铁的基础上制备聚合磷硫酸铁(PFPS).同时比较该絮凝剂和聚合硫酸铁(PFS)絮凝剂对模拟水样的净水效果,结果表明:该絮凝剂的除浊效果、沉降效果等都优于聚合硫酸铁(PFS).     

超声水解法制备超细透明氧化铁黄颜料

利用三价铁盐在超声波条件下水解生成透明氧化铁黄颜料,探讨了超声水解的影响因素,并对产品进行了沉降时间、耐酸、耐碱及耐热性和TEM等表征分析。     

利用本地资源制备净水剂的研究

研究了以本地废弃资源铝矾土矿、硫铁矿渣、红土等为原料制备净水剂的方法,并进行了产品净水效果实验.     

Regeneration of Red Cell Cholinesterase Activity Following Pralidoxime (2-PAM) Infusion in First 24 h in Organophosphate Poisoned Patients

Oximes such as pralidoxime chloride reactivate acetylcholinesterase. However their role in management of organophosphate poisoning is controversial. The study was carried out to find effectiveness of pralidoxime chloride (2-PAM) in regenerating red cell acetyl cholinesterase in first 24 h following administration of it in dose recommended by WHO. Eight patients with OPP [chlorpyriphos (3), phorate (3), dichlorvos (1) and monocrotophos (1) who fulfilled the criteria for inclusion were investigated. In addition to decontamination and atropine, all these patients were administered 30 mg/kg body wt of 2-PAM as bolus dose followed by 7.5 mg/kg body wt/h with maximum dose being 500 mg/h as continuous infusion till first 24 h. Red cell AChE activity was estimated every 15 min for first 4 h, one hourly for next 4 h and then 2 hourly till 24 h and subsequently without 2-PAM every 12 h till 7 days or discharge or death which ever earlier. In all the patients maximum increase in activity was observed in first 4 h following which rise was very slow despite continued 2-PAM infusion and reaching a steady state in 20 h in all the cases. The increase in red cell AChE activity observed in diethyl group at 24 h of 2-PAM infusion was 154% vs. 81% in dimethyl group. At 7 days the increase in activity was 215% vs. 118% respectively. However on multiple repeated ANOVA, no statistically significant difference was observed between diethyl and dimethyl groups at admission and discharge (P > 0.05). Similarly no significant difference was observed in three groups when patients were categorized according to WHO classification of organophosphates (P > 0.05). The maximum increase in red cell AChE activity occurs in first 4 h of 2-PAM administration followed by a slow increase despite 2-PAM infusion till 24 h.     

赤铁矿制备聚硅酸铁絮凝剂的性能研究

为利用赤铁矿、工业盐酸及硅酸钠为原料,制备聚硅酸氯化铁絮凝剂的方法并得出最佳条件,运用实验分析、文献分析及比较分析的方法,对聚硅酸氯化铁混凝性能进行了相关分析,并对聚硅酸氯化铁絮凝剂的性能进行了简要分析。结果表明,酸浸的温度、反应的时间、盐酸的浓度以及液固比均对铁的浸出有一定的影响,得到的最佳条件使铁的浸出率可达到94.58%;该方法制备的聚硅酸氯化铁絮凝剂pH适用范围较广,在整个中性和弱碱性范围内的处理效果较好;处理水的温度在10～30℃时,其效果较好;与市售的絮凝剂比较,在加药量相同的情况下,具有形成絮体速度较快,沉降速度快的优点。     

合成复合型絮凝剂聚合氯化铝铁性能影响因素

以铝箔酸、铝盐水和铝酸钙粉为主剂,亚铁酸为助剂．酸溶一步法合成聚合氯化铝铁．采用多因素正交试验研究了投料温度、加铁时间和保温时间对产品中铝含量、盐基度及其在处理污水过程中对污水中COD、TP和浊度的去除效果影响．结果表明,保温时间对产品中铝含量和盐基度及COD去除率影响最大,投料温度对浊度的去除效果最为明显,加铁时间对产品中铝含量、COD及浊度的去除率影响不大．