查询词典 reagent
- 与 reagent 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The fused dominant peptide antigen 38 kD-ESAT6-CFP10 might serve as a serodiagnostic candidate antigen, and the double antigen sandwich ELISA using the fused antigen might be used to detect the tuberculosis and improve the specificity and sensitivity of diagnostic reagent.
该种抗原优势肽段融合抗原有望成为结核病血清学诊断的重要候选抗原,并且双抗原夹心ELISA方法有助于提高检测的特异性和敏感性。
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The oxidative degradation of sesbania gum by Fenton reagent was studied in the article.
本文考察了芬顿试剂对田菁胶的氧化降解行为。
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In addition, the decreasing ratio of viscosity reached 90% with low temperature and short reaction time, which showed the high oxidative degradability of Fenton reagent for sesbania gum.
另外,只需较低的温度(25 ℃)和较短的时间(20 min),芬顿试剂就能使田菁胶粘度下降90%以上,显示了较好的降解效果。
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Experiment studies on the dehydration of fine particle coal using anion denaturating sodium ethyloic sesbania guargums as aid-fliter reagent have been carried out in this paper.
通过利用阴离子型羧甲基钠盐田菁胶对细粒煤和超细粒煤脱水的试验研究,探讨了助滤剂用量、过滤时间、真空度等因素对脱水效果的影响结果表明,该新型阴离子SESG助滤剂能够明显地提高细粒煤过滤脱水的技术指标图 9,参
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The results show high selectivity when the temperature is controlled at 50 CC , and the nitrated reaction time is 90 mm, toluene is nitrated by using 95% nitric acid as nitrating reagent at the presence of acetic anhydride, 1.0g silicotungstic acid catalyst is calcinated at 300℃ for 1.5h. The o/p (ratio of ortho to paro isomer of toluene nitration) ratio is 0.89 in product distribution of toluene nitration, lower than 1.67 using sulfonitric acid as catalyst. The yield of products is 91.6%.
结果表明,在醋酐存在条件下,以CCl4为溶剂,以质量分数为95%的硝酸为硝化剂,反应温度控制在50℃,反应60 min, 1.0g经300℃焙烧1.5h后的硅钨酸催化剂,对甲苯表现出强的区城选择性,甲苯硝化产物o/p值(甲苯硝化产物邻位和对位异构体的质量比)达0.89,较硝硫混酸的1.67显著降低,产物收率达到91.6%。
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MethodWith no reagent as the control,the controlling effect of Basta SLon weeds intomato field was detected by field plot experiment.
方法以不施药剂作为空白对照,通过田间小区试验,测定Basta SL对番茄田中杂草的防除效果。
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Then the condition and the catalyst of the reactions were confirmed. The characteristic analysis result of products reveals that the coatings has the advantages of the short drying time, good water resistance and high solidness .If it can be applied in practice, we can get rid of pollution of the traditional coatings which contains poisonous reagent which is composed of toluene and xylene.
本文对上述工艺中所涉及到的各步反应都作了详细的讨论,确定了反应的条件和催化剂,并对所得实验室产品进行了分析,结果发现,该涂料具有干燥时间较短,耐水性、硬度较好的特点,我们希望它能够得到实际的应用,使传统涂料摆脱工业用甲苯、二甲苯有毒试剂的污染物的困扰。
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Second,the sterically demanding substituted magnesium alcoholates can be prepared from dialkylmagnesiums R_2Mg and alcohol.The main disadvantage of this synthesis route lies in the fact that relative expensive dialkyl magnesium compounds,such as Et_2Mg for example,have to be used as starting materials.For this problem,a convenient preparation route of pure dialkylmagnesium from a Grignard reagent.
二、烷基镁法:具有空间位阻效应的仲醇镁和叔醇镁可以直接用烷基镁R_2Mg和醇进行反应来制备,这条路线的主要缺点是烷基镁比较昂贵,为了解决这个问题,本文采用格式试剂来制备烷基镁,将制得的烷基镁与叔丁醇反应制得叔丁醇镁。
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Automatic screening algorithm of abnormal data for linear regression calculation, improved algorithm for kinetic analysis and temperature calibration algorithm for enzyme analysis were successfully used in the portable spectrometer. 4. More than ten kinds of chemical reagent kits for rapid determination of environment monitoring and food safety coupled with the portable spectrometer were studied, such as Cr, Pb, Cd, NO2-,,NO3-, formaldehyde, sodium formaldehyde sulfoxylate, COD, NH4+, PO43+, CN-, F, Cl2, etc.
本文研究了六价铬、铅、镉、亚硝酸盐、硝酸盐、甲醛、吊白块、COD、氨氮、磷酸盐、氰化物、氟化物、余氯与总氯等十余种与环境监测和食品安全检测有关的快速检测试剂盒,并与目前实验室标准分析方法进行了分析化学特性的对比研究。
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Sulfuric acid was sulphonation reagent, add the sulfuric acidquantity was 8%, reaction temperature was 60~65℃.The reaction occursbetween the feed oil and sulfuric acid,then add 30% of sodium hydroxidesolution conducted neutralization in the Pyrex standard react kettle,when the reactionfinished ,draw out the products by funnel,then the products react with 8%clay to refine received the sulphonation refining oil so as to review property andreceive rate of the shallow sulphonation refining oil .By the using the sulphonationrefining oil to blend lubricant,its quality is on-specification .
为验证其可行性,首先在实验室进行浅度磺化小试,原料油采用新疆原油经常压蒸馏、减压蒸馏、溶剂精制、溶剂脱蜡后的减压二、三线脱蜡油,发烟硫酸作为磺化剂,发烟硫酸加入量8%,反应温度60~65℃,用三口圆底耐热玻璃标准反应釜对原料进行发烟硫酸磺化,加入量30%氢氧化钠中和,分液漏斗抽提,在烧杯内加入量8%白土进行精制得到磺化抽余油,考察浅度磺化抽余油性质和收率,用磺化抽余油调合润滑油质量合格。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。