查询词典 sample rate

A method for the determination of phenol and catechol in tobacco leaf by high performance liquid chromatography with methanol and 0.05 mol/L of monopotassium phosphate as mobile phase at a flow rate of 0.5 mL/min was described. Phenol and catechol were extracted from tobacco sample by distillation and solid phase extraction with Sep Park C 18 cartridge.

引 言挥发酚是烟草中一类重要的成分，它在烟草燃烧时直接进入烟气，大多有不好的气味，而且很难被掩盖；特别是苯酚和儿茶酚对呼吸系统有腐蚀作用和助癌作用，近年来逐渐引起了烟草化学工作者的注意〔1〕。

The calibration curve was linear in the range of 0.003 40～0.02432 mg.ml-1 for rutin. The sample was stable within 8 hours and the recovery rate of rutin was 98.56 %. And in precision test, RSD=1.38%. ConclusionThere is rutin in SFE extract of Sparganium stoloniferum.

结果在三棱的超临界萃取物中含有芦丁成分，建立的液相色谱方法在芦丁浓度为0.003 40～0.02432 mg.ml-1的范围内线性关系良好，样品在8 h内稳定，平均加样回收率为98.56%，以峰面积作精密度实验，RSD为1.38%。

For each type of sample investigated, the crystallization exotherm became wider and shifted towards lower temperature range with increasing cooling rate.

结果表明，随着冷却速率的增加，每个试样的结晶放热曲线均变宽，并向低温区移动。

Inspection in the production process of semi-finished products must not be transferred to testing failed enamelled processes, on-line test by 100% surface inspection of products quality and size, product sampling, the 10% test sample to detect the performance of their products; for storage products comprehensive performance tests to ensure factory compliance rate of 100% commitment.

在生产过程检验中对半成品检验不合格产品不得转入漆包工序，在线检验按100％检验产品的表面质量和尺寸，成品抽样试验按10％抽取样品，检测其产品性能；对于入库产品进行全面性能测验，做到产品出厂合格率100％的承诺。

This new strategy gets the potential support vectors and removes the non-boundary outlier data immixed in the other class by using fuzzy clustering. That can greatly reduce the scale of the training sample set and improve the generalization performance by effectively avoiding over-learning caused by outlier data, and finally speed up learning rate without reducing the classification accuracy.

该策略运用模糊聚类方法快速的提取出潜在支持向量并去除类内非边界孤立点，在减小训练样本集规模的同时，能够有效地避免孤立点数据所造成的过学习现象，提高了SVM的泛化性能，在保证不降低分类精度的前提下提高训练速度。

For the determination of five carbamate pesticide residues by high performance liquid chromatography with gel permeation chromatography purification, sample was extracted with acetonitrile and purified with gel permeation chromatography. Methanol-water was used as the mobile phase by gradient elution, flow rate of 1.0mL/min, using a fluorescence detector and quantitating with external standard method.

凝胶渗透色谱-液相色谱法测定5种氨基甲酸酯类农药残留中，实验采用乙腈提取，凝胶渗透色谱柱对样品进行净化，以甲醇-水为流动相，进行梯度洗脱，流速1.0mL／min，荧光检测器检测，外标定量测定。

Results The Sanitary Indices of only two sets of air-conditioning systems were qualified according to the national sanitary standards, therefore, only 5 percent of the sanitary indices are op to the standard. And she qualifying rates of PM10, total bacteria count, total epiphyte count are 95.0%, 96.0% and 93.5% respectively. The detecting rate of Legionnaires pneumophile is 56% in 75 samples of cooling water. Hemolytic streptococcus can be found in one sample of the wind delivery and inner surface of blast pipe.

结果 在22家宾馆酒店40套空调系统中，卫生指标均合格的2套，合格率5%；200份空调送风的PM10、细菌总数、真菌总数合格率分别为47.5%、91.5%、83.5%；200份风管内表面的积尘量、细菌总数、真菌总数合格率分别为95.0%、96.0%、93.5%；75份冷却水嗜肺军团菌检出率为56%；空调送风及风管内表面各有一份样品检出溶血性链球菌。

Analytical C18 column with 15 cm length was used while eluted with mobile phase containing 50 mM phosphate salt buffer: acetonitrile: methanol=67:22:11. The flow rate was set at 1.0 ml/min to complete one sample for OLZ, DMO, and internal standard within 30 minutes.

移动相则为50 mM磷酸盐缓冲液（pH5.7）：ACN：MeOH =67：22：11，在流速为1 ml/min设定下可於30分钟完成一个OLZ、DMO含内部标准品之血样分析；测定灵敏度皆为1 ng/ml。

Lower operating costs linked to customer self-managed enterprises to buy self-service mode of operation mainly to reduce labor factory sales, which relatively few employees, a savings plant funding costs, the cost savings in the plant site supermarket chains, clearly the price of goods, customers are free to choose, customers save time shopping plant, saving the plant enterprises operating costs while accelerating the flow rate of plant customers, increasing traffic Plant In short, chain-chain management and the total cost of operating in the gap between us is very clear on the same number of enterprises in the two sample survey shows that chain businesses Compared with the cost of other retail shopping centers around a low 10-point white

降低经营费用连锁经营企业以顾客自我选购、自我服务的经营方式为主，减少厂售货劳动，因而雇员相对较少，节省厂}一资成本，节约厂场地费用在连锁超市中，商品明码标价，顾客可以自由挑选，顾客节省厂购物时间，也节省厂企业的经营成本同时，加快厂顾客的流通速度，增加厂客流量总之，连锁经营与非连锁经营在总成本费用上的差距很明显我们对同样数量的两种企业进行抽样调查显示，连锁经营企业的费用较之其他零售商场约低10个白一分点

Inspections in the first half of 2007 showed that the average acceptance rate regarding pesticide residues in vegetables was 93.6 percent; those regarding clenbuterol hydrochloride contamination and sulfa drug residues in livestock products was 98.8 percent and 99.0 percent respectively; and that regarding chloromycetin in aquatic products was 99.6 percent, of nitrofuran 91.4 percent, and of pesticide residue over 95 percent in sample surveys done at production bases.

根据2007年上半年的监测结果，蔬菜中农药残留平均合格率为93.6%；畜产品中&瘦肉精&污染和磺胺类药物残留监测平均合格率分别为98.8%和99.0%；水产品中氯霉素污染的平均合格率为99.6%，硝基呋喃类代谢物污染监测合格率为91.4%，产地药残抽检合格率稳定在95%以上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。