三色

Three species of typical fresh algae, Chlamydomonas reinhardtii, Euglena gracilis, Synechococcus leopoliensis, were chosed as the experiment material in order to investigate their biodegradable abilities to triazophos.

使用液液萃取——气相色谱检测的方法测定培养基中三唑磷的浓度，回收率在84.2%～97.4%之间，相对标准偏差为0.24%～2.48%；藻培养液离心后取上清液用液相色谱检测培养基中三唑磷的浓度，回收率为99.0%～99.7%，相对标准偏差为0.6%～1.0%。

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生产、代理产品如下：硬度计无损检测仪器三坐标测量机显微镜其他量仪疲劳试验机放大镜拉力试验机台秤万能试验机弯曲试验机其他专用仪器仪表冲击试验机恒温试验设备高度计天平仪器计价秤强度试验机其他分析仪器信号发生器温度校验仪表地上衡其他试验机非金属材料试验机投影机百分表游标卡尺腐蚀试验箱包装件试验机其他实验仪器装置色谱仪电导仪器速度测量仪表光谱仪、光度计测力仪表测厚仪压力计色标、色卡 LCR测量仪真空测量仪器汽车试验设备非接触式温度计其他光学仪器千分尺压力式温度计定量秤其他电子产品制造设备工具量具产品广陆系列产品威海量具系列产品新锡量、锡工、申韩系列产品联思系列产品青海量具系列产品上工系列产品上量系列产品成量系列产品哈量系列产品桂量、杭工量系列产品西南系列产品大阳、ASIA、日本三丰量具、日本孔雀、系列产品申工、塞尺、螺纹样板、半径规、钢直尺水平仪、磁性工具系列产品钻夹头、接杆、丝锥夹头平板架子垫铁、曲铮、铸铁方箱、比测台、V型铁、强力磁铁、取出器、圆规、角度规、大力钳、针规铁皮剪刀、切割片、平板|环规、塞规、螺旋丝锥、挤压丝锥、左牙丝锥加长直柄钻、加长直柄钻美标钻、白直钻哈钻、青钻、1/2柄钻、锥柄加长钻、欢迎来电咨询。

The method on trans fatty acids analysis in food is very important. The effects of methylate sodium, potassium hydroxide, sulfuric acid and boron trifluoride in methanol and their different concentration and dosage on TFA analysis were studied. The chromatographic condition and the influence of time and temperature on the esterifation of TFA using boron trifluoride in methanol were optimized. A method for analyzing TFA were established by GC based on boron trifluoride in methanol and RT-2560(100m×0.25mm×0.2μm) capillary column.

研究了甲醇钠－甲醇、氢氧化钾－甲醇、浓硫酸－甲醇和三氟化硼－甲醇4种甲酯化试剂的浓度、用量及甲酯化时间和温度对反式脂肪酸检测的影响，优化了色谱条件，建立了以三氟化硼－甲醇法甲酯化，RT-2560(100m×0.25mm×0.2μm)毛细管柱为基础的反式脂肪酸气相色谱检测方法，C18：1-9 t， C18：1-11 t， C18：2-9 t， 12 t和C22：1-13 t 4种反式脂肪酸的最小检出浓度在0.774.08 mg/kg之间。4种反式脂肪酸不同添标浓度回收率为98.44%101.23%，重复测定的相对标准差在0.22%1.31%之间，有较好的准确度和重现性。

N,N-dimethyl-N'-(2-trifluorometyl-1-pentafluoroethyl) perfluoro propenyl propane diamine and N,N-dimethyl N'-(2-trifluorometyl-1-pentafluoroethyl) perfluoro propene propane diamine were prepared by the reaction of hexafluoropropene dimer and N,N-dimethyl propanediamine in the molar ratio 1:1.0 at about 35℃for 8h, and the structures of I were identified by IR and NMR spectra.

本文以六氟丙烯二聚体和N，N-二甲基丙二胺为主要原料合成了两种含氟中间体叔胺——N，N-二甲基-N'-(2-三氟甲基-1-五氟乙基)全氟丙烯基丙二胺和N，N-二甲基-N'-(2-三氟甲基-1-五氟乙基)全氟烯丙基丙二胺，用薄层色谱和柱色谱等方法对产品进行分离提纯，并运用红外光谱和核磁共振等分析手段对其结构进行了表征。

There are four parts in this thesis, the main works of author are summarized and presented as follows:1. Multivariate curve resolution with alternating least squares and alternating trilinear decomposition are applied in the resolution of overlapping peaks of camptothecin and 7-ethyl-10-hydroxy- camptothecin (SN-38) from HPLC-DAD.

全文共分四章，作者的主要工作有以下三个方面：一、采用HPLC-DAD检测，结合多元曲线分辨-交替最小二乘和交替三线性分解方法对未优化的色谱分离条件下产生的7-乙基-10-羟基喜树碱(SN-38)和喜树碱的严重重叠的色谱峰进行分辨。

Serum total cholesterol was determined by isopropanol withdrawing and ferric-glacial acetic acid -sulfuric acid developing method, serum triglyecride by isopropanol withdrawing and acetylacetone developing method,serum high density lipoprotein-cholesterol by magnesium phosphotungstate mehod, respectively. Serum low density lipoprotein-cholesterol was calculated by the equation: LDL-C=TCh--0.2 TG.

采用异丙醇抽提、三氯化铁-冰醋酸-硫酸显色法检测血清总胆固醇，用异丙醇抽提、乙酰丙酮显色法检测血清甘油三酯，用磷钨酸镁法检测血清高密度脂蛋白-胆固醇，用等式LDL-C=TCh--0.2TG计算血清低密度脂蛋白-胆固醇。

Acetonitrile-sodium chloride, trichloromethane and acetone-dichloromethane were used to extract organophosphorous pesticides respectively. Pulsed-flame photometer detector was used to analyze the extraction rate of these three solvents. Flame ionization detector was used to analyze the content of impurity in the samples extracted by those three solvents.

分别采用乙腈－氯化钠法、三氯甲烷法和丙酮－二氯甲烷法提取蔬菜样品中残留的有机磷农药，使用带脉冲式火焰光度检测器的气相色谱法比较了三种提取方法有机磷农药的提取效率，使用带火焰离子检测器的气相色谱法分析了三种提取方法杂质溶出量。

Textile colorfastness to crocking is very important, and there are differences among test methods in different countries. The test results are influenced by different test methods. In order to avoid the "trade rubs" among different countries, it is necessary to know the correlation among test results of different test methods. In this paper, Chinese GB(GB/T 3920-51997), AATCC(AATCC TM 82004) and JIS(JIS L 0849-1996) test methods of colorfastness to crocking were introduced.

纺织品耐摩擦色牢度是重要的检测指标，各国的标准和测试方法有一些差异，而不同的测试方法对测试结果有一定的影响，为了解不同测试方法测试结果的相关性，以避免贸易摩擦，本文介绍了耐摩擦色牢度的我国国标(GB/T 3920 5 1997)、美国纺织化学家及染色家协会标准(AATCC TM8 2004)、日本标准工业协会标准(JIS L 0849 1996)等三个测试方法标准，通过对相同试样的三种测试方法的测试，探讨了评定值之间的相互关系。

I put into production since the Secretary has been actively introduce advanced production equipment innovation and technology, in order to meet customer orders in Europe and the United States has launched a new demand for environmental protection trivalent chromium process, for the plating of the following: trivalent chromium, chromium -, A half-chrome, pearl chromium, Heiqiang color, green bronze, gold, champagne.

我司自投入生产以来，积极创新引进先进生产设备及工艺，为满足欧美客户订单的需求现已推出新型环保三价铬工艺，镀种为以下几种：三价铬，光铬，半光铬，珍珠铬，黑枪色，青古铜，金色，香槟色等。

Of yolk (13%-88%) of pigeon eggs were replaced by yolk of Rhode Island Red, local black hen or South China Duck, the hatchability was about 60%.

三如果实验鸽亲本是同色纯种，调换卵黄对于羽色没有产生明显的变异；如果亲本不是同色，多数经调换蛋黄的幼鸽羽色较对照的显得深些。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。