二苯基甲醇

Objective: to study the synthesis of optically pureα,α-diphenyl(pyrrolidin-2-yl)methanol.

目的：研究光学纯α，α-二苯基-2-吡咯甲醇的合成工艺。

Both of them showed no toxic effect on mice at the testing dose of 10 mg/kg. The 2,2-diphenyl-1-picrylhydrazyl free radical scavenging test showed that both of the formicary extracts were potent radical scavengers and their scavenging activities were dose-dependent. Furthermore, at higher concentrations (5～10 mg/ml) both of them exhibited significantly higher DPPH scavenging activity than butylated hydroxytoluene.

二苯基三硝基肼(1，1-diphenyl-2-picrylhydrazyl ，DPPH)自由基的清除能力的检测表明：两种蚂蚁窝甲醇提取物都具有显著的自由基清除能力，并呈现出剂量依赖性，而且，在高浓度时(5～10 mg·mL-1)，它们的自由基清除能力甚至显著地高于二丁基羟基甲苯(butylated hydroxyl toluene，BHT)。

The indirect determining method of phosgene in ambient air by reversed-phase high performance liquid chromatography was set up.

μm 为分析柱，甲醇-水(体积比为 70∶30 )为流动相，在 2 5 7nm波长处用紫外检测器检测 1，3 二苯基脲，建立了间接测定空气中光气的反相高效液相色谱法。

This method is simple, rapid, accurate and effective for testing the impurity dibenzyl-(2-chlorophenyl) methanol in Clotrimazole and Betamethasone Dipropionate cream and for its content determination.

所建方法准确、简便、快速，适用于克霉唑倍他米松乳膏中克霉唑和二丙酸倍他米松的含量测定和杂质二苯基-（2-氯苯基）甲醇的含量测定。

The calibration curve was linear (r=0.9999) within the range of 5.096×10-3~0.2038 μg/mL for dibenzyl-(2-chlorophenyl) methanol. The average recovery was 99.83% with repeatability precision RSD=1.26%(n=9). The limit of dibenzyl-(2-chlorophenyl) methanol was 2.00%.

，平均回收率为100.34%，RSD=0.95%（n=9）；杂质二苯基-（2-氯苯基）甲醇在5.096×10-3~0.2038 μg/mL范围内线性关系良好（r=0.9999），平均回收率为99.83%，RSD=1.26%（n=9），限度为不得大于克霉唑标示量的2.00%。

Based on reviewing of functionalization of saturated carbon by catalytic oxidation with metalloporphyrins and metal phthalocyanines as a mimic of the enzyme cytochrome P-450, two reaction systems of which one was the preparation of 4, 4'-dinitrostilbene-2, 2'-disulfonic acid from 4-nitrotoluene2-sulfonic acid and the other was the preparation of 4, 4'-bis (dimethylamino -diphenyl) phenylmethanol from 4, 4'-bis (dimethylamino-diphenyl) phenyl methane , were specifically studied as carfunctionalization and oxyfunctionalization of saturated carbon.

本文在全面综述金属卟啉和金属酞菁类模拟细胞色素P-450酶催化剂催化氧化饱和碳原子功能化的基础上，选择由4-硝基甲苯-2-磺酸制取4，4'-二硝基二苯乙烯-2，2'-二磺酸和由4，4'-二苯基甲烷制取4，4'-二苯基甲醇两个反应体系进行饱和碳原子碳功能化和氧功能化的具体研究。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？