精密度

In this article, the method for detecting five kinds of biogenic amines by HPLC was established, and the contents of biogenic amines in Chinese rice wines and soy sauces were detected. In order to reduce the contents of BA, we inoculated Lactobacillus curvatus 6031 and Leuconostoc mesenteroides 51-5 D in sausage and the contents of BA and the microbial counts was studied during the fermention of sausage.

建立了高效液相色谱测定生物胺含量的方法，方法稳定性好、精密度高，回收率高，五种生物胺的回归方程分别为：y 尸胺=48.903x R 2=0.9996；y 组胺=36.105x R 2=0.9994；y 酪胺=29.865x R 2=0.9902；y 亚精胺=46.671x R 2=0.9967；y 精胺=31.239x R 2=0.9926，在2～40μg/ml的范围内R均大于0.99，检测限分别为：尸胺、组胺和亚精胺为0.05μg/ml，酪胺为0.1μg/ml，精胺为0.25μg/ml。

The research results indicated that the pretreatment of corn stalk by steam blasting procedure or warm oxygen method could successfully separate lignose and fibre, and enzyme hydrolysis could realize 85 % cellulose conversion rate, then yeast used for fermentation to produce alcohol.

将测定谷物色氨酸的&酶水解三氯化铁醋酸比色法&用于山羊奶、牛奶色氨酸测定，回收率可达96.4％以上。试验结果表明，该法精密度与DAB比色法无显著性差异，但比DAB比色法更快，更简便可靠

The determination of the concentration of SPLX is simple,cheap,sample saving,high precision by the microbiologic assay.

用微量微生物法测定SPLX血药浓度，操作简便，成本低廉，样品用量少，精密度高，适用于体内药物浓度监测。

It shows that the new Mecroburet is superior in precision, accuracy and operational performance. The new microburet has many distingushing features, such as no leakage, no bubbles, automatic filling, automatic zero set.

表明新型微量滴定管具有较好的精密度、准确度和操作性能，克服了经典滴定管活塞易渗漏、易生产气泡、装液难、近终点液滴不易控制及酸碱不通用的缺点。

The accuracy and precision of the result accorded with the demand of titrating analysis. The selfmade microtitration was convenient and accurate, could be used to determining the contents of chlorphenamine maleate.

自制微型滴定装置具有较好的操作性能和精密度，符合滴定分析法的要求，可用于测定马来酸氯苯那敏的含量。

The accuracy and precision of the result accorded with the demand of titrating analysis. The self made microtitration was convenient and accurate, could be used to determining the contents of chlorphenamine maleate.

自制微型滴定装置具有较好的操作性能和精密度，符合滴定分析法的要求，可用于测定马来酸氯苯那敏的含量。

The mass fraction of Fe2O3 in the mixture was calculated and used as a representation of mixedness degree. The results of the study show that the new method provides similar precision and accuracy for...

结果表明，该法与重铬酸钾法比较，精密度和准确度均无显著性差异，测定混匀度的相对误差在±2%，且方法简便、快速、准确、对环境友好，可用于生产实时监控。

The chemical analysis of N, P and K in organic fertilizer is presented: sample is decomposed by sulfuric acid-hydrogen peroxide and prepared to be a solution. N can be determined by NC-2 model quick N analysis set, P by chinoline molybdic acid method and K by tetraphenylboron potassium, needless of spectral photometer and flame photometer, the method is available when the content of N, P or K is over 0.1% with desired accuracy and precision.

介绍用化学分析方法测定有机肥料氮、磷、钾的含量，即样品经硫酸-过氧化氢消化后，制备待测溶液，分取待测溶液用NC-2型快速定氮仪测定氮，用磷钼酸喹啉重量法测定磷，用四苯硼酸钾重量法测定钾，不需使用分光光度计和火焰光度计，适宜一般复混肥料厂采用，对含氮、磷、钾分别达0.1％以上的样品均可用本法测定，方法的准确度和精密度能满足生产的要求。

The results are compared with IDMS results, which indicate that they are accordant. The uncertainty analyses include each uncertainty factor in whole experiment and the uncertainty of used certified reference material and it shows that the procedure blank is not neglectable to detect limit and precision of the method.

方法的不确定度分析包含了实验过程中每个步骤所产生的不确定度和使用的标准物质的不确定度，其中，流程空白对方法检测限和精密度的影响不容忽视。

To 4. 7 % for peak area response, and 1. 6% to 2. 8% for peak height response for the four organotin species.

有机锡化合物的迁移时间、峰面积和峰高的精密度范围（RSD，n=5）分别为1.7～3.1％、3.8～4.7％和1.6～2.8％。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。