一种新型高温煤气脱氯剂的研究

以价廉易得的天然矿物及碱为化学活性组分，制得一种新型高温煤气脱氯剂GH1，该脱氯剂在650℃高温，空速2500h^-1和进口HCl气体体积浓度1500mg/m^3-2000mg/m^3条件下的穿透氯容量达到37.2%，同时机械强度合格，实验还考虑了主要成分配比，空速和温度对脱氯性能的影响，并讨论了有关机理。     

温和条件下水-异丙醇溶液中多氯联苯的催化脱氯(英文)

目的研究温和条件下,多氯联苯(polychlorinated biphenyls,PCBs)的催化脱氯减毒方法。方法在40℃常压条件下,水-异丙醇混合溶剂中,用钯/碳催化剂对多氯联苯进行催化脱氯研究。结果催化脱氯反应4 h后,多氯联苯同类物总浓度从47 991 pg.ml-1减小到55 pg.ml-1,氯脱除率达到99.89%;有毒多氯联苯同类物的总毒性当量从979 pg TEQ/ml减小到0.40 pg TEQ/ml,毒性削减率达到99.96%。结论尽管存在种类繁多的其他持久性组分的干扰,钯/碳催化剂对从垃圾焚烧飞灰中提取的多氯联苯的脱氯表现出很高的活性。     

高温煤气中HC1气体与脱氯剂的反应动力学

在固定床反应器中研究了自制的脱氯剂与高温煤气中ＨＣ１气体的反应动力学,得出在５５０℃时反应受通过产物层的扩散和化学反应反控制,两埂的阻力之比为０．１３８。同时研究了温度和进口ＨＣ１气体浓度对该反应影响,得出反应对于气相ＨＣ１为一级反应。     

含氯消毒剂引起手术器械锈蚀的影响因素及对策

目的:探讨含氯消毒剂引起手术器械锈蚀的影响因素,手术器械处理过程中执行先清洗后消毒的流程。方法:用含氯消毒剂(含有效氯500 mg/L)和清水各浸泡新止血钳(14 cm)10把和随机抽取临床正在使用的污染血管钳(14 cm)10把,浸泡24 h,含氯消毒剂(含有效氯1 000 mg/L)浸泡新止血钳(14 cm)10把24 h,用目测法观察器械锈蚀反应。结果:含氯消毒剂浓度和浸泡时间与锈蚀反应成正比;手术器械的关节和纹齿处易锈蚀;使用后的手术器械比新器械易锈蚀,器械质量的优劣与其抗锈蚀能力成正比。结论:由于含氯消毒剂的腐蚀性,造成手术器械锈蚀给清洗增加了难度,避免用含氯消毒剂浸泡手术器械;热力消毒代替含氯消毒剂既能达到消毒效果,又不产生器械锈蚀;强调在处理器械时严格遵循标准预防。     

PVC材料热解脱氯的研究

研究表明，PVC在氧气、空气、氢气、氮气以及水蒸气中的脱氯可分3个阶段，低温缓和脱除期、中温快速脱除期和高温缓和脱除期。快速脱氯期的大致温度为180-240℃，其中70％～80％的氯离子在其间被脱除。气氛对脱氯率有显著的影响，氧气氛最有利于PVC材料的热解，随氧气分压的提高，脱氯率相应增加；与氮气相比，氢气也有利于热解；而在水蒸气中的脱氯率最小。各种改性PVC材料的热解性能不尽一致，通过对添加剂邻苯二甲酸二辛脂和硬脂酸钙与PVC树脂混合后的热解研究表明，脱氯性能的差异是由于添加剂的组分和含量的不同造成的。     

钒依赖型氯过氧化物酶催化脱肟反应研究

目的 研究一种新型的绿色脱肟方法即卤过氧化物酶催化脱肟反应,同时尝试与醇脱氢酶(ADH)级联扩大脱肟反应应用范围.方法 在室温条件下,以钒依赖型氯过氧化物酶(CiVCPO)为催化剂,向柠檬酸缓冲液中加入肟类化合物、H2O2、NaCl.随后,调控反应液pH同时加入TgADH与辅因子.结果 确定最优体系为50mmol/L ...     

洪水期饮用水超氯去味法的应用

日常生活中 ,饮用水消毒方法有多种 ,通常应用氯化消毒法 ,使用漂白粉剂量为 2～ 4mg/ L。我市地处东南沿海 ,夏秋季节是洪水高峰期 ,水源细菌污染较为严重 ,影响群众生活质量。为保证洪水期饮用水卫生 ,我们多使用超氯消毒方法。但超氯消毒会使水中余氯增高 ,产生较强的气味 ,群众较难接受。近年来 ,我们采用脱氯去味法 ,方法简便 ,既经济又高效 ,总结如下。1　材料与方法1.1　脱氯试验　 1使用硫代硫酸钠脱氯法 :在水中按 1mg游离余氯加 3.5 m g硫代硫酸钠 ,搅拌 10 m in,测余氯。 2使用加热煮沸脱氯法 :加热煮沸 10 min,待冷却后测余氯…     

溶剂,酰化剂和底物浓度对手性氯醇酶促酯化的影响

利用脂肪酶在非水相体系中催化的对映选择性酯化反应,对外消旋手性药物中间体（±）－１－氯－３－（１－萘氧）－２－丙醇（简称萘氧氯丙醇）进行了拆分,考察了溶剂、酰化剂和底物浓度对酶活性和选择性的影响。结果表明,当溶剂为异辛烷,酰化剂为醋酸酐、底物浓度为氯醇１００ｍｍｏｌ／Ｌ、酸酐５０ｍｍｏｌ／Ｌ时,酶显示出最佳的催化活性和选择性,产物酶的光学纯度可达９０％。     

含氯消毒剂有效氯含量的调查

含氯消毒剂的有效氯含量直接关系到消毒的效果。为此，我们对我市生产、销售的部分含氯消毒剂的有效氯含量进行了调查。     

两种氯制剂杀菌效果及稳定性比较

两种氯制剂杀菌效果及稳定性比较张姝丽，于忠华，特孟，金焱，赵俊英（内蒙古自治区卫生防疫站）含氯消毒剂中最常用漂白粉，已沿用数十年，近些年，又发展了许多无机、有机含氯消毒剂。金星消毒剂是近几年较为普遍使用的新型消毒剂。现将呼市生产的金星消毒剂，Ｈｙ一１...     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Dr.Zhang Ren''''s Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

Luo Lingjie''''s Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…