Methods A new portable formaldehyde meter and special reagent packages for determining formaldehyde in air in situ was developed. 用化学法和仪器法(甲醛测定仪)分别测定经甲醛熏制香菇中的甲醛含量,并对两种方法进行比较分析。
A new method of deashing was provided to solve the difficulty of flotation deashing by some special kind of reagent changing the surface nature of Zhungeer coal. 主要针对准格尔煤浮选降灰的难度,提出某种药剂改变准格尔煤表面性质,从而降低灰分的方法。
A special reagent package was developed, so the quantities of samples and reagents needed are small. 使用专用试剂包显色,样品和试剂用量少。
Study on the Special Reagent of Nitrite 亚硝酸根特种试剂研究
The preparation mettod of special powdered reagent about nitrite ( NO-2) was studied in this paper. 本文对亚硝酸根离子特种粉剂型试剂进行了制备研究。
In the technology of dosing deflecting coil, special material as solid reagent of resin is one kind of intensional caustic reagent. 在特种灌封料灌封偏转线圈技术的研究中,针对特种料的强腐蚀性和强毒性对灌封设备中管接头和球阀进行了密封设计;
The development of underwater auto analyzer for ammonia and silicate was listed in the national 863 plan special projects, the National Oceanic Environment Monitoring Center was mainly responsible for the optimization of techniques for auto determination of ammonia and silicate and reagent stability study. 氨氮盐、硅酸盐的水下自动分析仪的研制开发,也于2002年列入了国家863专项研究,国家海洋环境监测中心主要承担完成氨氮及硅酸盐自动测定工艺的优化和试剂稳定性的研究。
With low costs and convenient procedure, this method can be applied in common factories without any large equipment and special reagent. 该方法检测成本低廉,测定程序方便快捷,不需大型仪器和特殊试剂,可应用于一般工厂实践中。
Based on the special structure of surfactants, a magnetic reagent was prepared by using a paramagnetic material as magnetic nucleus and coating with two layers of surfactants. 根据表面活性剂特殊的分子结构,以顺磁性材料为磁核,在其表面先后覆盖内层、外层两层表面活性剂的单分子膜,合成磁化剂。
The results of comparative test for two kinds of reagents in different water samples show that the homemade reagent can replace the special reagent. 通过两种试剂在不同水样的对比实验结果,说明自配试剂可以替代专用试剂。
The general composition of COD special reagent is obtained by quantitative and qualitative analysis. 通过对该仪器的COD专用试剂定量、定性分析,得出该试剂的大致组成和比例。
As a special reagent assay technology, immunoassay has been widely used in several distinct fields. 免疫分析作为一类特殊的试剂分析技术,已经被广泛应用于多个不同领域。
An immunoaffinity fast test technology was established for determining aflatoxin B1 in edible oil by homemade special fluorescence fast test apparatus for aflatoxin and correlative immunoaffinity reagent kit. 采用国内自主研制的黄曲霉毒素专用荧光快速检测仪及配套的免疫亲和试剂盒建立一套快速的免疫亲和检测方法,对食用油中的黄曲霉毒素B1进行测定。
An Observation on the Features of Water-washed Basic Fuchsin with Special Reference to the Quality of Schiff's Reagent and the Colour of Feulgen Reaction 对水洗碱性品红的染料性状、Schiff试剂质量和Feulgen反应色调的观察
Hypervalent iodine reagent is a new type of oxidant, which has a special superiority in the pharmaceutical synthesis. The alcohols could been oxidized to the corresponding carbonyl compounds with high chemoselectivity by hypervalent iodine reagent. 高碘试剂是一类新型的氧化剂,可以高选择性的将醇类化合物氧化成相应的羰基化合物,在合成药物方面具有独特的优势。
It is a high-performance special rubber widely used, which possess weather resistance, aging resistance, flame resistance, chemical reagent resistance, good mechanical properties and excellent electrical insulation performance. 它是一种具有高性能的特种橡胶,耐气候、耐老化、耐燃、耐化学介质以及机械性能和电绝缘性等性能优异,因而用途广泛。