加标

A method for the determination of Acetic acid and Hydrobromic acid in air and environmental sample by ion-chromatography is described.

用同一吸收液采集、离子色谱法测定空气中的乙酸和溴化氢，采样体积为60L时，乙酸和溴化氢的检出限分别为0.03mg/m3和0.11mg/m3，相对标准偏差分别为1.9%和1.7%，实际样品的加标回收率分别为90.1%~102%和

Results:There was no significant difference in mensuration between microwave disgestion-acetylacetone-formaldehyde spectrophotometry method and international standard Kjeldahl determination.

结果：微波消解-乙酰丙酮甲醛分光光度法与国标凯氏定氮法相比测定结果差异无显著性，该方法线性范围在5~100μg/10 m l，相关系数r=0.9997，检出限为0.546μg/10 m l，相对标准偏差为1.29%~2.21%，加标回收率

The General rules for the labelling of prepackaged foods "and" labelingofprepack the labeling of foods for special dietary uses lawk "in addition to the requirements of prepackaged foods bag must indicate whether the food ingredient lists, name, net, and drain matter content and content, manufacturer's name and address, production date, pasteurizd, product standards, and other items, also specifies specific marking methods, such as, the production of prepackaged foods should be clearly labeled in such a substance's specific site, the date shall be additionally nongraphite 加贴, printing or tampered with; prominent location on food labelling, clearly reflect a true food labels, moreover, the private property; on the use of preservatives in food, discharged the name " and specific provisions of the code for importing food labels to use foreign languages at the same time, you must have a close and character, and foreign language cannot be greater than the corresponding Chinese characters; all ingredients are water, no matter how much you must label, special nutritional food must mark special components and so on.

预包装食品标签通则》和《预包装特殊膳食用食品标签通则》除要求预包装食品袋上必须标明食品名称、配料清单、净含量和沥干物含量，制造者的名称和地址、生产日期、保质期、产品标准号等项目外，还规定了具体的标注方法，如，预包装食品的生产日期，应明显地标示在包装物的具体部位，日期标示不得另外加贴、补印或篡改；食品标签的醒目位置，清晰地标示反映食品真实属性的专用名称；对使用防腐剂的食品，要明确标出&具体名称&和规定代码；对于进口食品，食品标签中若同时使用外文，必须与汉字有严密的对应关系，且外文不得大于相应的汉字；所有配料甚至包括水，不论量的多少必须标注，特殊营养食品必须标注特殊成分含量等等。

The mean recoveries of domoic acid from Mytilus edulis and artificial seawater spiked with 2 mg/L domoic acid were (93.4±4.9)% and (89.7±3.2)%(n=3), respectively.

对于加标2mg/L的紫贻贝和海水样品，回收率分别达到(93.4±4.9)%和(89.7±3.2)%(n=3)。

In this method, titration with standard solution of perchloric acid in glacial acetic acid was used.

建立了在非水条件下快速测定食品中糖精钠的方法，以冰乙酸为溶剂，用高氯酸的冰乙酸标准溶液滴定，经过反复试验，相对标准误差0.92%~2.93%，加标回收率97.13%~100.3%，结果表明；该法定量分析准确，精确度高，可靠性和重现性好。

A method is described for determination of trace arsenic in phosphatic compound fertilizer with the correlation coefficient r = 0.9978, and within the range of marking recovery rate 99.12%～107.10%.

介绍一种磷复肥中微量砷的测定方法将混酸消解处理后的试样，在盐酸介质中，采用氢化物原子吸收光谱法测定砷含量本方法相关系数r = 0.9978，加标回收率范围在99.12%～107.10

The detection and quantification limits of scutellarin obtained were 0.28 mg/L and 0.93 mg/L, respectively.

野黄芩苷的质量浓度采用高效液相色谱进行离线测定，得到的检出限和定量测定下限分别为028 mg/L和093 mg/L，日内和日间精密度分别为1.7%和3.6%，平均加标回收率为98.3%。

The recoveries of ketamine spiked in human serum and urine were between 94% and 102%.

氯胺酮生物样品的加标回收率为94%~102%。

At 3 spiked levels, all the recoveries of ERY were more than 79%.

在选用的三个加标浓度下，红霉素的回收率都大于79%。

Eventually, the proposed method has been successfully applied for the analysis of spiked human serum samples.

最后将所建立的方法用于人血清加标样品的手性拆分和检测。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。