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二氧化硫

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Also, according to DOE,modifying a high-sulfur bituminous coal-fired plant to burn lower-sulfur subbituminous coal is estimated to cost $113 per ton of SO2 removed and is the least expensive method.

并且, 根据母鹿,修改高硫磺沥青燃煤工厂烧低硫磺subbituminous 煤炭估计花费$113 每吨二氧化硫被取消和是最少昂贵的方法。

Sodium formaldehyde sulfoxylate can break down into formaldehyde and sulfur dioxide in process of using.

吊白块在使用过程中会分解出甲醛和二氧化硫,先用乙酸铅试纸法[1]对样品进行定性筛选,可疑样品再用分光光度法[2]测量甲醛的含量,判断是否含有吊白块。

Methods: in the light of the introduction of national standards "The analytical methods of zymolytic alcohol healthful standard" measured formaldehyde content of the food; and according as the national standard methods of measuring sulfur dioxide content of the food to determine food formaldehyde or sodium formaldehyde sulfoxylate content.

参照采用国家标准《发酵酒卫生标准的分析方法》,测定食品中甲醛的含量;再按国家标准方法测定食品中二氧化硫的含量,以判断食品中甲醛或吊白块的含量。

This apparatus can be used to determine the formaldehyde, Sodium formaldehyde sulfoxylate , nitrite ,nitrate ,sulfur dioxide and pesticide residue in food rapidly and quantitatively by spectrophotometry..

仪器采用分光光度法,快速定量检测食品中甲醛、吊白块、亚硝酸盐、硝酸盐、二氧化硫和农药残留,适用于食品生产企业、农业生产基地、农业市场、质量监督、卫生防疫等部门。

This apparatus can be used to determine the formaldehyde , Sodium formaldehyde sulfoxylate , nitrite ,nitrate ,sulfur dioxide and pesticide residue in food rapidly and quantitatively with spectrophotometer..It is suitable for food production enterprises , agriculture markets ,quality monitoring ,epidemic prevention department ,etc.

项目简介:仪器采用分光光度法,快速定量检测食品中甲醛,吊白块,亚硝酸盐,硝酸盐,二氧化硫和农药残留,适用于各级工商部门,农检中心,农业植保,食品生产企业,农贸批发市场,质量监督,卫生防疫等部门。

Bombyx mori silk fibroin film was treated by plasma processes with SO 2 gas to introduce functional groups on the surface of film. Meanwhile, functional groups were also introduced by the reaction of 1,3 propane sultone with amine sites on the surface of silk fibroin film which were produced by NH 3 gas plasma.

从蚕丝中提取的丝素蛋白制备成薄膜,首次采用二氧化硫等离子体处理在材料表面引入磺酸基团;同时丝素蛋白膜用氨气等离子体处理后在表面接入氨基,利用 1,3 丙磺酸内酯与氨基的反应在材料表面接枝磺酸基团。

"We were surprised in our finding," says research chemist and lead author Takayuki Tamura , because we thought that polyphenols or sulfur dioxide the unpleasant sensation.

&我们对该发现感到吃惊,&此项研究的主要发起人、化学家田村孝之说,因为我们原以为是多酚或二氧化硫产生了难闻的气味。

As a result of recent world-widediscussions on the possible harmfulness of sulphites, theJoint FAO/WHO Expert Committee on Food Additives has assessed the intake of sulphur dioxide andrelated compounds, suchas calcium, potassium andsodium hydrogen sulphite; calcium, potassium and sodiummetabisulphite; calcium, potassium and sodium sulphite;and sodium thiosulphate.

由於最近全世界关於硫化物的可能的有害,在食品添加剂的联接FAO/WHO专家委员会的讨论估计了二氧化硫入口和相关化合物, suchas钙,钾和钠氢硫化物;钙、钾和钠偏亚硫酸氢盐;钙、钾和亚硫酸钠;并且钠硫代硫酸盐。

In the original titrimetric solution, known as Karl Fischer Reagent, the sulfur dioxide and iodine are dissolved in pyridine and methanol.

在最初的滴定溶液里,已知的是卡尔费休试剂,二氧化硫和碘溶解在吡啶和甲醇中。

Principle— The titrimetric determination of water is based upon the quantitative reaction of water with an anhydrous solution of sulfur dioxide and iodine in the presence of a buffer that reacts with hydrogen ions.

原理---水分滴定测定法是基于水与二氧化硫和碘的无水溶液,在能与氢离子反应的缓冲溶液下发生的定量反应。

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I can not make it blossom and suits me

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When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。