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- Keywords Amphetamines;Gas chromatography;Urine;Acyl derivatization; 苯丙胺类药物;气相色谱法;酰基衍生化;尿;
- Keywords Hallucinatory amphetamines drug;Acyl derivatization;Gas chromatography;Urine; 致幻性安非它明类药物;酰基衍生化;气相色谱分析法;尿;
- Keywords Urine;Hallucinatory amphetamines drug;Acyl derivatization;Gas chromatography;Nitrogen-phosphorous detection; 尿;致幻性安非它明类药物;酰基衍生化;气相色谱;氮磷检测器;
- Acyl derivatization 酰基衍生化
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- An example of the acyl group is the acetyl group. 乙酰基是酰基的一个例子。
- Tannase is an acyl hydrolase of tannin. 单宁酶是水解单宁酯键的酶,用途广泛,具有重要的商业价值。
- Emphases were given to the extraction and derivatization of PCP. 重点介绍了PCP的提取、衍生化过程,同时总结了各种方法的优缺点。
- For the apolar compounds, the derivatization was not necessary. 非极性化合物则不需要衍生化。
- Methods:EFTA is synthesized from EATA by one step:acyl. 方法:以2-氨基-噻唑基-4-乙酸乙酯(EATA)为原料;经氨基甲酰化反应得到 EFTA.
- Derivatization methods were used to study the monosaccharide composition. 本文采用薄层色谱法分析多糖的单糖组成。
- This article reviews precolumn derivatization methods of glycans currently used for HPLC analysis. 为提高检测的灵敏度,往往需要对糖链衍生化。
- Use of ammonia gas: fertilizer and various ammonia containing compound, various amidogen, acyl and other ammonia containing testing agents (explosives) etc. 氨气用途:化肥和各种含氨化合物。各种胺基、酰基、硝酸和各种含氨制试剂(炸药)等。
- Objective:Aloe polysaccharide was identified and quantified by better method of derivatization. 目的:探索较佳的衍生化方法,对芦荟多糖进行定性定量分析。
- The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. 以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
- A precolumn derivatization with OPA of HPLC method was established for the determination of Hepa Merz injection. 采用高效液相色谱邻苯二甲醛柱前衍生化法,测定进口药品阿波莫斯注射液中天门冬鸟氨酸的含量。
- Structure 4 is the reaction intermediate for H2C=C(OH)Na to serve as acyl anion equivalent. H_2C=C(OH)Na具有双重反应性;结构4是发生亲核反应的中间体;发生类卡宾反应时经过类似构型2的中间状态.
- Audi will further expand the derivatization in the B segment in the present year with the A5 Sportback. 奥迪将进一步扩大衍生在B部分在本一年的A5跑车。
- The effects of organic solvents, acyl donors and amounts of lipase on the reaction were studied. 攷察溶剂、酰基供体和加酶量对反应的影响,确定有机相中酶促拆分环氧丙醇的最适反应条件。
- This can make heavy atom derivatization in the presence of reducing agents, difficult and frustrating. 这就使得用重金属原子作同晶置换法遇到了麻烦。