二甲酸

Adopting 30-second nitrocellulose as the main sticky material, using ethyl acetate, ketone, alcohol and aromatic hydrocarbon as a mixture solvent and modifying nitrocellulose with dimethyl phthalate plasticizer,the prescription of staple adhesive was designed with orthogonal experimental methodology.

选用30s 硝酸纤维素作为主要成膜物质，醋酸酯、酮、醇和芳烃作为组合溶剂，邻苯二甲酸酯类复合增塑剂对硝化棉进行改性，采用正交试验方法确定胶黏剂的配方。

Acetic acid equipments using material in PTA, PVA, aldehyde oxidation and methyl alcohol carbonyl synthetic four plants in chemical industry and chemical fibre production are analyzed.

对化工化纤生产中的精对笨二甲酸、聚乙烯醇、乙醛氧化生产醋酸与甲醇羰基合成醋酸4个装置醋酸设备用材进行分析，并对含Cl-、含Br-、含I-的醋酸及含Cl-的甲乙混酸对不锈钢、铜、钛与镍基合金等金属材料腐蚀原因作了讨论。

The average recoveries of benzene, toluene,-xylenes, o-xylene are from 97.21% to 103.10% and the RSDs are from 0.12% to 0.95%. And the average recoveries of Phthalic acid ester are from 96.01% to 102.02% and the RSDs are from 0.92% to 2.46%.

2采用PTFE膜过滤前处理法，首次建立了涂料中苯系物和邻苯二甲酸酯类环境激素的同时测定方法，并对分析方法作了准确度、精密度以及实验室间验证。

Asindicated by the formation of HOTA,the"OH"generated by the Fenton-type reactioncatalyzed by copper ion is different from that generated radiolytic,the former is ratherlocalized and therefore difficult to be scavenged by TA.

对铜催化的类Fenton反应的研究表明，类Fenton反应产生的&羟自由基&与水辐解产生的羟自由基不同，不能被对苯二甲酸全部清除。

Methods: Copper was determined by catalytic kinetic spectrophotometric method which was based on the copper catalyzing oxidation of brilliant green by potassium chlorate and hydrogen peroxide in potassium hydrogen phthalate-sodium hydrate buffer solution at pH4.20. The absorbance was measured at 624 nm.

在pH4.2的邻苯二甲酸氢钾－氢氧化钠缓冲溶液介质中，利用铜离子催化氯酸钾和过氧化氢氧化灿烂绿的指示反应，通过测量624 nm下吸光度的改变，用催化动力学光度法测定痕量铜。

Objective: To establish a method for the determination of three phthalates in human serum by gas chromatography.

目的：建立用气相色谱法测定人血清中三种邻苯二甲酸酯类环境污染物含量的方法。

The researchers said they do not know how prenatal exposure to phthalates may lead to behavioral problems.

研究人员表示，他们还无法弄清产前接触邻苯二甲酸酯是如何导致行为问题的。

All fabrics that may be subject to Lead and Phthalates MUST be tested before you CUT the goods.

所有可能含有铅和邻苯二甲酸的织物都必须在你剪裁前进行测试。

Phthalates are allegedly banned from use in personal care products, and in some toys in Europe.

在欧洲，邻苯二甲酸是明令禁止被用在个人护理产品中的。

Phthalates have been around for about 50 years, and it is unknown whether people's exposure has increased.

其实邻苯二甲酸酯已经存在50多年了，只是无人知晓人们与它的接触在不断增加。

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。