标准测定

This method is accurate in the quality control assessment of the standard samples of benzene series; it is applicable for the detection of denzene toxicants in the air of workplaces.

方法应用于苯系物环境标准样品的质控考核，测定结果均在保证值范围内，准确度高。适用于工作场所空气中苯系毒物的检测。

So it can be used to detect the amount of benzoic acid in milk products.

在测定范围内标准线性关系良好，可用于乳饮料和奶制品中防腐剂的检测。

To determine the content of Berberine Hydrochloride in Baitouweng Powder and to provide evidence for its quality criteria.

建立中兽药散剂白头翁散中盐酸小檗碱的含量测定方法，为其质量标准的制订提供实验依据。

With the sample dissolved in 0.1NNaOH solution and bovine serum albumin used as the standard protein, the Percentage of proteins in the sample is given by spectrophotometric method with biuret reagent.

该法使用0.1NNaOH溶液溶解样品，以大牛血清白蛋白作为标准蛋白质，利用缩二脲试剂分光光度测定样品中的蛋白质含量。

Results: The content of Al was 0.0147±0.0022 mg/L in drinking water, 395.3 mg/kg in sweet potato noodle, 860.7~1012.1 mg/kg in fried bread stick, and that dissolved from cooking utensils made of aluminum is becoming great after being stored for 24 hours.

结果：生活饮用水铝含量为0.0147±0.0022 mg/L；食品中油条、粉条铝含量较高，特别是油条中铝含量平均为860.7 mg/L，最高达1012.1 mg/kg，粉条中铝含量高达395.3 mg/kg；铝制炊具铝溶出量测定结果显示，符合卫生标准的饮用水在铝制炊具中存放24 h后，水中铝含量即会超标。

Result:①CASIC-2.0 has excellent reliability and the test result of CASI C-2.0 is stable.②50 as a cut-off score,the accuracy is high.③On reliability using ICD-10 criteria as "Gold Criteria" and 50 as a cut-off score,comparing with MMSE,CASIC-2.0 has a better specificity and the same sensitivity.

结果：①CASIC-2.0具有良好的信度，测定结果稳定；②使用50分作为CASIC-2.0诊断痴呆的截断值，其准确性最高；③在效度方面，以ICD-10为金标准，使用50分为截断值，与MMSE相比，CASIC-2.0的敏感性与MMSE相当，特异性高于MMSE。

Iodine in soil samples were extracted with 10% NH3H2O in Carius tube for 4 hours at 150℃. After properly diluted, the solution was separated centrifugally.

建立了利用Carius管提取与标准加入电感耦合等离子体质谱法测定土壤中碘的方法。

The increase in chemiluminescence intensity was linearly proportional to the chlordiazepoxide concentration in the range from 1.11×10^(-11) to 8.35×l0^(-10) mol/L.

结果表明：在1.11×10^(-11)~8.35×10^(-10)mol/L内氯氮卓浓度与发光信号成线性关系，检出限为4.79×10^(-12)mol/L，重复测定11次的相对标准偏差为2.49%Cs=3.34×10^

The average recoveries of chloropicrin in vegetables and fruits at 0.02~1 mg/kg fortification level were 92.2%~111%, with relative standard deviations of

氯化苦的添加浓度在0.02~1mg/kg范围内，平均回收率为92.2%~111%，相对标准偏差为1.9%~7.2%，均在农药残留测定允许范围内。

The affect factors on acupuncture property of pharmaceutical closure are discussed and test shows that the acupuncture property shou'd be determined under standard conditions.

探讨对抗生素胶塞针刺性能影响的因素。证明针刺性能的测定必须在标准条件下进行，其所得数据才比较可靠。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。