The study and development of permanent hair dyeing, agent especially about the new harmless ones such as iron salt, plant extracting and Melanin hair dyeing agent are reviewed.
综述了永久性染发剂的研究开发，尤其新型无毒染发剂如铁盐染发剂，植物萃取物染发剂和黑色素类染发剂等。
COD removal rate of the wastewater has not been reduced after 10time reuse of the extracting agent.
萃取后的络合相经碱解分离即可回收萃取剂，萃取剂循环使用10次，废水的COD去除率无下降趋势。
Method: Respectively degree of orange peel thickness and weight, extracting agent and extraction time for mixing crushed were performed single factor experiment, respectively.
方法：分别对橙皮的厚薄度和重量、萃取剂和搅碎萃取时间等进行单因素实验。
Dichloromethane was used as extracting agent for the extraction, and then vacuum rotatory evaporator was used for the concentration.
以二氯甲烷为萃取剂对茅台迎宾酒中的微量成分进行了萃取，然后用真空旋转蒸发器将其浓缩。
This method contains steps as follows: pre-processing raw material, adding extracting agent which contains ionic liquid, centrifuging, filtering, purifying and condensing the extracting liquid.
该方法包括下列步骤：原料预处理，加入含离子液体的萃取剂，萃取液离心、过滤、纯化、浓缩即可。
Effects of PH in the reaction medium, the incubation temperature, the extracting agent and the sample matrix on the detection sensitivities were also studied and discussed.
笔者还对孵育介质pH和温度、提取剂及样品基体等因素对定量曲线的影响进行了研究和讨论。
Can be used as raw material for dyestuff, phenolic resin, medicine and oil paint. Or used as the extracting agent of pure products such as phenol, cresol and xylenol.
可用于制造染料，酚醛树脂，医药，油漆等；还可作为提取苯酚，甲酚和二甲酚等纯产品的原料。
The free radical network scavenging agent of the invention is obtained by extracting raw materials which comprise forsythia, giant knotweed and myrobalam by organic solvent.
本发明的自由基网络清除剂，是用有机 溶剂从包括连翘、虎杖和诃子的原料中提取得到。
This paper studied the methods of extracting pectin from the cactus by salting - out agent.
本文研究了用盐析法从仙人掌中提取果胶的工艺条件。
The purpose of the invention is to provide a paper pulp cleaning agent extracting lignin fully from paper pulp raw material, a paper pulp preparing method, and a paper pulp cleaning method.
本发明的目的在于提供可更加充分地从纸浆原料提取木质素的纸浆清洗剂、纸浆制造方法、以及纸浆清洗方法。
Preparation of acellular nerve matrix using Trito X-100 and sodium deoxycholate as extracting agent: Is there an optimal time?
以TritonX- 100和脱氧胆酸钠为萃取剂制备兔脱细胞神经基质：有最佳时间吗？
Spectrophotometric determination of cobalt in bright nickel plating bath was advanced with ammonium thiocyanate as complexing agent and butyl acetate as extracting agent.
以硫氢酸铵络合钴离子，随后用乙酸丁酯进行萃取，利用分光光度法测量光亮镀镍溶液中的钴离子。
Solvent impregnating resins (SIR) have been prepared by impregnating macroporous styrene-divinylbenzene copolymer adsorption resins (SDAR) in the solution of extracting agent N235.
用萃取剂N_（235）（多种叔胺混合物）浸渍大孔苯乙烯-二乙烯基苯吸附树脂（SDAR）制备了溶剂浸渍树脂（SIR）。
Moreover, the condition of extraction about many factors, for example, the effect of extracting agent, temperature, time, pH valve and species were studied in th…
甘草酸提取的众多影响因素中，存在显著性差异的是提取温度、提取次数、提取时间、加酸量和甘草等级。
The ac irritant agent is made of extracting and mixing hot pepper, garlic, foaming agent and staining agent by alcohol.
AC刺激剂是辣椒、大蒜、发泡剂和染色剂用乙醇萃取配制而成。
The ac irritant agent is made of extracting and mixing hot pepper, garlic, foaming agent and staining agent by alcohol.
AC刺激剂是辣椒、大蒜、发泡剂和染色剂用乙醇萃取配制而成。
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