萃取法回收水厂污泥中铝的技术研究Ⅰ.清液萃取法

水厂污泥的铝含量高,是一种重要的铝再生资源。研究了液相离子交换萃取法铝回收技术。采用P204-煤油作为萃取剂,与水厂污泥的酸溶浸出液反应,经3级错流萃取,铝萃取率可达96.3%。以5 mol/L硫酸为反萃剂,在相比(VO∶VA)为5∶1的条件下经3级反萃,铝反萃率达到98.9%,反萃液符合液态商品硫酸铝的质量标准,可作为饮用水处理的混凝剂回用。     

碳酸钠-粉煤灰烧结样中铝、铁、硅的酸浸规律

系统研究了碳酸钠活化粉煤灰提取铝过程中铝、铁、硅的酸浸出规律。高温条件下,碳酸钠与粉煤灰中的莫来石反应形成霞石,同时释放出CO2;粉煤灰中铝、铁的酸浸规律一致,但铁更容易被浸出;烧结碳酸钠 粉煤灰样品中硅浸出发生在体系由烧结状态向完全熔融过渡的阶段,超过2%的氧化硅可以被浸出。     

分光光度法研究铝制炊具的铝溶出量

目的　用铬天青S(CAS)分光光度法测定各种铝制炊具的铝溶出情况。方法　模拟日常生活不同烹饪条件 ,以自来水、4 %乙酸、3%氯化钠为介质 ,测定不同溶出时间及加热温度时的铝溶出量。结果　在酸性介质或盐性介质中铝溶出量远大于自来水 ,而且铝溶出量随使用温度的升高和时间的延长而增加。结论　铝制炊具的铝溶出不可忽视 ,建议不用或少用     

黄芪螺旋藻分散片溶出度的测定

目的探讨黄芪螺旋藻分散片的溶出度。方法采用UV法考察黄芪螺旋藻分散片在水及不同pH介质中的累积溶出百分率以及不同批次的累积溶出百分率。结果黄芪螺旋藻分散片在以水作为溶出介质时,在60min时溶出较为完全;3批样品在60min内累积溶出率达到92.51%;本分散片在pH 6.5时较其它pH值的累积溶出较完全,且在pH 6.5介质中5批分散片样品在60min内累积溶出率达到90.40%。结论 UV法用于黄芪螺旋藻分散片溶出度的检测,方法客观、准确、可靠。     

硫铁矿烧渣中铁浸出率影响因素的实验研究

目的探讨硫酸用量、助溶剂种类及用量、温度、时间对硫铁矿烧渣中铁浸出率的影响,进而得到酸浸的最佳工艺条件。方法以硫铁矿烧渣为原料与硫酸直接反应,滤液用重铬酸钾法滴定铁离子的含量,进行多组单因素对比实验分析,从而得到各因素对铁离子浸出率影响的变化规律。结果实验得到了硫酸用量、温度、时间对铁离子浸出率的影响规律。结论各因素对铁离子浸出率均有一定的影响,酸浸的最佳工艺条件为硫酸浓度4 mol/L,助溶剂选择氯化钠且其与硫酸摩尔比为1？20,反应温度95℃,反应时间2 h。     

固体混合酸催化FCC汽油烷基化硫的转移性能

采用固体混合酸在搅拌反应釜中催化FCC汽油进行烷基化硫转移反应,研究了载体催化剂在不同硅铝质量比下的B酸、L酸和总 酸含量、催化剂混合酸的负载量、混合酸的质量比以及不同焙烧温度对酸量的影响,考察了酸分布、酸量与催化剂催化活性的关系 ,分析了FCC汽油烷基化反应前后的烃组成和辛烷值。结果表明：当载体中w(Si)为0.6～0.7时,催化剂中B酸含量最大;当混合酸负 载量为60%,焙烧温度为500～550 ℃时,催化剂的总酸量最大,此时催化剂烷基化硫转移反应的活性最高,噻吩硫的转移率达到 93.7%。在烷基化反应前后,FCC汽油油品的组成变化不大,烯烃含量略有降低,辛烷值下降0.2个单位。     

吲哚美辛肠溶微囊的制备及药物释放的研究

目的用复凝聚法制得吲哚美辛肠溶微囊并探讨其包封率及药物释放情况。方法本实验用复凝聚法制备3种壳聚糖-海藻酸盐吲哚美辛肠溶微囊,并采用紫外分光光度法绘制吲哚美辛在人工肠液(pH 7.4)中的标准曲线。利用紫外分光光度法测定微囊的包封率及测定3种微囊在一定时间内溶出的量作释放研究。结果通过复凝聚法得到吲哚美辛肠溶微囊,粒径1 mm左右,干燥后粒径0.2-0.3 mm,其包封率依次为61.80%,57.00%,64.20%;壳聚糖含量越高,缓释作用越强,微囊中吲哚美辛在人工肠液中的溶出速度明显快于人工胃液。湿微囊溶出高于干微囊。结论紫外分光光度法测定肠溶微囊中吲哚美辛的包封率及释放方法可靠,线性良好,稳定性好;壳聚糖-海藻酸盐微囊使包封药物吲哚美辛有肠溶特性。     

多指标综合评分优选炒车前子工艺研究

目的:基于炒车前子改变药效、利于有效成分溶出的炮制目的,优选炒车前子的最佳工艺,并将炒制前后的车前子进行对比。方法:以指标性成分京尼平苷酸和毛蕊花糖苷的含量、水溶性浸出率为评价指标,选择炒制温度、炒制时间、翻炒次数为考察因素,采用正交设计优选炒车前子的最佳炮制工艺,并比较炒制前后车前子外观、粘多糖含量的变化。结果:在炒制温度为130℃,炒制时间20 min,翻炒次数8次/min时,车前子中京尼平苷酸和毛蕊花糖苷含量最高,水溶性浸出率高车前粘多糖含量降低。结论:优选出的炒车前子炮制工艺为炒制温度为130℃,炒制时间20 min,翻炒次数8次/min。     

衍生化紫外分光光度法测定依替膦酸二钠片的溶出度

目的 建立测定依替膦酸二钠片溶出度的方法。方法 采用转篮法,以水900 mL为溶出介质,于续滤液中加0.07%硫酸铜溶液,用紫外分光光度法测定,波长为233 nm。结果 依替膦酸二钠在浓度16.5～55.0 μg·mL^-1内线性关系良好(r=0.999 5),平均回收率为101.1%,RSD为0.8%(n=9),30 min时平均溶出量大于90%。结论 本法准确,简便,可用于测定依替膦酸二钠片的溶出度。     

浸出方法对番泻甙浸出量的实验

浸出方法对番泻甙浸出量的实验顾志远，褚爱武，丁召兴（附属医院药剂科，２５６６０３）关键词番泻叶；番泻甙；浸出方法；浸出率近年来，番泻叶及其制剂屡见报道［１～４］，番泻叶的主要有效成份为番泻甙Ａ及Ｂ，其它有芦荟大黄素、大黄酚、大黄酸等。为减少有效成份的...     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.