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- A new water soluble color reagent 1 (5 bromo 2 pyridylazo) 2,7 hydronaphthoquinone 6 sulfonic acid (5 Br PADN S) was synthesized. 报道了水溶性 1-(5-溴-2-吡啶偶氮)-2,7-萘二酚-6-磺酸(5-Br-PADN-S)的制备方法及其分析特性。
- Cu 2+ ? Zn 2+ ? Co 2+ and Ni 2+ with 2 (5 bromo 2 pyridylazo) 5 diethylaminophenol(5 Br PADAP) and cetyltrimethy lammonium bromide(CTMAB) in pH 8.3 buffer solutions were studied. 痕量Fe3+、Mn2 +、Cu2 +、Zn2 +、Co2 +、Ni2 +与 2 ( 5 溴 2 吡啶偶氮 ) 5 二乙氨基苯酚 ( 5 Br PADAP)和溴化十六烷基三甲基铵 (CTMAB)在pH 8.;3时发生高灵敏显色反应;所形成的三元胶束络合物的吸收光谱严重重叠。
- The bromination of 6 methoxy 2 propionylnaphthalene with 1,3 dibromo 5,5 dimethylhydantoin proceeded smoothly, quickly, and gave 5 bromo 6 methoxy 2 propionylnaphthalene with 98.59% yield in alcohol. 室温下;6-甲氧基-2-丙酰基萘和1;3-二溴-5;5-二甲基海因的溴化反应在醇溶剂中;反应速度快、转化率高;生成5-溴-6-甲氧基-2-丙酰基萘的收率高(98.;59
- Ethyl 4 bromo 2 butenoate,a medicine intermediate,was prepared using 2 butenoic acid as main raw material through esterification and bromination reactions. 以2丁烯酸为原料,通过酯化和溴代反应研制了药物中间体4溴2丁烯酸乙酯。
- Compared with the control group,a great number of Bromodeoxy Uridine/5 Bromo 2 Deoxy Uridine(BrdU) positive cells existed at the transplantation spot in the transplantation group,showing that the transplanted cells could survive in vivo. 移植组与对照组相比,移植组移植部位存在大量5-溴-2-脱氧尿苷(bromodeoxyuridine/5-bromo-2-deoxyuridine,BrdU)染色阳性的细胞,表明移植的细胞在体内可以存活;
- Keywords Zinc 5 Bromo salicyl fluorone Fluorescence quenching method; 锌;5-溴水杨基荧光酮;荧光熄灭法;
- Keywords zinc;salicylaldehyde 5 bromo salicyloylhydrazone;spectrofluorimetry; 锌;水杨醛溴水杨酰腙;荧光分析;
- If you subtract 3 from 5, you get 2. 五减去三就得二。
- Keywords Molybdenum;5 Bromo Salicyl Fluorone;Cetyltrimethyl Ammonium Bromide;Fluorescence Quenching.; 钼;5-溴水杨基荧光酮;溴化十六烷基三甲铵;荧光熄灭;
- These fish vary in weight from 3 lb to 5 lb. 这些鱼的重量从3磅到5磅不等。
- The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
- Keywords coal gangue;zinc;5 bromo salicyl fluorone;fluorescence quenching method; 煤矸石;锌;5-溴水杨基荧光酮;荧光熄灭法;
- Many children under 5 go to nursery school. 5岁以下的许多儿童都上幼儿园。
- Meals average out at 5 per head. 膳食平均每人5英镑。
- Children under 5 can travel for nothing. 5岁以下儿童可免付旅费。
- Even the cheapest was priced at 5. 即使最便宜的也标价5英镑。
- Keywords aluminium;5 bromo salicylaldehyde salicyloylhydrazone;spectrofluorimetry; 铝;5-溴-水杨醛水杨酰腙;荧光分析;
- The liquid was 5 litres in volume. 该液体的体积为5升。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- The winning time was 1 minute 5 seconds. 获胜的时间是1分零5秒。