查询词典 methyl cyanide

Results: Using of handy infrared gas spectrometer, the ammonia, sulphur dioxide, acetone, butanone, ethyl acetate, chloroform, benzene, toluene, methyl alcohol, ethyl alcohol, isopropanol, and other harmful gases can be carried out quickly Online Testing. The arsine, hydrogen chloride, hydrogen cyanide, hydrogen sulfide can not be detected online.

结果：可利用便携式红外气体分析仪对氨、二氧化硫、丙酮、丁酮、乙酸乙酯、氯仿、苯、甲苯、甲醇、乙醇、异丙醇等有害气体可进行快速的在线检测，不能对砷化氢、氯化氢、氰化氢、硫化氢进行快速在线检测。

The HPLC finger print of TGDGBX was set up by HPLC-DAD: the chromatographic column,Diamonsil C18(250 mm×4.6 mm, 5μm, 30℃)and bidimensional gradient elution using methyl cyanide-water (flowing speed 1.0 mL·min-1,λ=203 nm). 180 Wistar rats were randomly divided into normal control group, model group, cortisone group, and TGDGBX (16,32 and 64 mg·kg-1) groups respectively.

采用HPLC-DAD，Diamonsil C18色谱柱(250 mm×4.6 mm， 5μm)，乙腈―水二元梯度洗脱，流速1.0 mL·min-1，(λ=203 nm)，柱温为30℃，建立了当归补血总苷的HPLC指纹图谱。180只Wistar大鼠随机分为正常对照组、模型对照组、强的松组和当归补血总苷大、中、小剂量组，每组30只。

The experimental conditions included reverse phase C-18 column, equivalent elution by 17 % methyl cyanide and detection wavelength at 259 nm.

试验条件为反相C18柱、17 %乙腈等度洗脱，以259 nm为检测波长。

The chromatographic column is Nucleosil the C18 column (4.6mm×250mm,5μm); Flowing for methyl cyanide - water =1∶2; The speed of flow is 0.8ml/min; The examination wave length is 205 nm; The speed is 0.4mm/min.

色谱柱为Nucleosil C18柱(4.6mm×250mm，5μm)；流动相为乙腈-水＝1∶2；流速为0.8ml/min；检测波长为205 nm；速度为0.4mm/min。

01 Mol/L solution of sodium heptanesulfonate (to adjust PH to 2.2 with the debited orthophosphoric acid)-methyl cyanide (44:56) as mobile phase, detective wavelength was 254 nm.

采用HPLC法以辛基硅烷键合硅胶为填充剂；以0.01 mol/L庚烷磺酸钠溶液（稀磷酸调PH值至2.2）-乙腈(44：56)为流动相；检测波长为254 nm。

In our country, the acetone is mainly used to produce solvent, acetone cyanide alcohol / methyl methacrylate, methyl isobutyl ketone, bisphenol A, medicines and rubber additives.

国内丙酮主要用于溶剂、丙酮氰醇/甲基丙烯酸甲酯、甲基异丁基酮、双酚A、医药以及橡胶助剂等。

Has established the Avey rhzomorph through the field test remains the analysis method in the sea cabbage and the soil, and remained to it in the sea cabbage and the soil has carried on the determination, the sample with the methyl cyanide extraction, after extracting the revolving concentration nearly did, with the few methyl cyanides dissolves, passed through PRS the solid phase extract column to purify again, eluent air-dried after the nitrogen with the nitrogen methyl imidazole and the trifluoroacetic acid bitter wine grows, the derivative with the highly effective liquid chromatography analysis, used the external standard legal quantity.

通过田间试验建立了阿维菌素在甘蓝及土壤中的残留分析方法，并对其在甘蓝和土壤中的残留进行了测定，样品用乙腈提取，提取液旋转浓缩近干后用少量乙腈溶解，再经PRS固相萃取柱净化，洗脱液经氮气吹干后用氮甲基咪唑和三氟乙酸酐衍生，衍生物用高效液相色谱分析，采用外标法定量。

The process was methanolysis α-imino ether acid hydrogen chloride salt from methyl-cyanide.

研究了以乙腈为原料经α-亚氨基乙醚盐酸盐醇解制备原醋酸二乙酯的工艺方法，对醇解的投料比、反应时间及中和pH值等工艺条件进行了研究，得出较优惠的工艺条件。

The process was methanolysis ed alkyl inino-acetic acid ester hydrogen chloride salt from methyl-cyanide.

研究了由乙腈为原料经烷基亚氨基醋酸酯盐酸盐醇解制备原乙酸三甲酯的工艺方法，对投料比、反应温度、反应时间及中和指示剂等工艺条件进行了研究，得出较优惠的工艺条件。

The source and formation mechanism of methyl carbamate in liquor covered the followings:①methyl carbamate formed by spontaneous chemical reaction of carbamide and methanol in fermented and undistilled alcoholic beverage;②in alcohol produced by grains as raw materials, cyanide precursor of grains formed into cyanate during fermentation and distillation, which further developed into methyl carbamate in alcohol.

白酒中氨基甲酸甲酯的来源和形成机理主要有：①在已发酵的和未蒸馏的酒精饮料中尿素和甲醇自发的化学反应生成氨基甲酸甲酯；②以谷物为原料生产的酒精中，氨基甲酸甲酯形成的途径来源于谷物的氰化物前体在发酵和蒸馏时反应形成的氰酸盐，氰酸盐在酒精中转化为氨基甲酸甲酯。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。