欧美日本一道本一区二区_亚洲免费影视_91手机在线看片_精品欧美成人高清在线观看_少妇作爱bbbb免费看_51久久夜色精品国产水果派解说

上海非利加實業有限公司Logo

熱門詞: 進口電動溫度調節閥結構圖|進口電動溫度調節閥數據表進口電動高溫調節閥-德國進口電動高溫法蘭調節閥進口電動蒸汽調節閥-德國進口電動蒸汽調節閥

當前位置: 首頁 > 所有品牌 > Wellington Laboratories
Wellington Laboratories
Wellington Laboratories Wellington Laboratories

加拿大Wellington Laboratories
加拿大Wellington標準品、對照品

Wellington Laboratories Inc. (Wellington) was incorporated in February 1980, celebrating its 25th anniversary in 2005.

In the late 1970’s, PCBs were known environmental contaminants, whereas chlorinated dioxins (PCDDs) and furans (PCDFs) had only recently been considered as threats to the environment. In addition, there was very little information as to the toxicity of PCBs, PCDDs and PCDFs, particularly long-term effects.

As it became more well documented that certain PCB, PCDD and PCDF congeners were quite toxic, and significantly more toxic than other congeners, the need for standards of these compounds grew rapidly. However, very few reference standards of these compounds were commercially available.

The scientists that founded Wellington had, for many years, synthesized individual congeners of PCBs, PCDDs, PCDFs and other halogenated aromatic compounds for their own research. Requests for samples of these compounds and custom synthesis of related compounds became overwhelming, and Wellington was formed to respond more quickly and efficiently.

In January 1983, Wellington released it first catalogue, offering PCB, PCDD and PCDF congeners. This catalogue was only 4 pages in length and listed approximately 75 individual compounds.

In the ensuing years, Wellington added more staff and lab space, and devoted itself to a considerable amount of research and development. This has led to the current catalogue, posted on this web site, which contains well over 1000 products.

Wellington will continue its research efforts with the goal of developing additional reference standards of compounds that pose a risk to environmental and human health.


?


Memberships/Affiliations
American Chemical Society (ACS)

Chemical Institute of Canada

Association of the Chemical Profession of Ontario (ACPO)

International Association of Environmental Testing Laboratories (IAETL)

Canadian Association for Laboratory Accreditation Inc. (CALA)*

?

關于我們客戶服務產品分類法律聲明
主站蜘蛛池模板: 亚洲精品久久国产高清情趣图文 | 久久久香蕉 | 色人阁亚洲色图 | 综合网天天 | 狠狠色噜噜狠狠狠狠2021 | 国产精品都在这里 | 亚洲国产一区二区三区在线播 | 日产久久| 国产亚洲无 | 国产精品白丝喷水在线观看 | 成人在线免费视频观看 | 狠狠干很很操 | 无码粉嫩小泬无套在线观看 | 中文字幕精品亚洲 | 久久国产午夜理论片 | 国产黄毛片 | 色吧伊人| 超碰最新上传 | 久久国产成人午夜av影院 | 国产在线视频网站 | aaaaa爽爽爽久久久 | 国产免费爽爽视频 | 国产日韩欧美视频 | 精品女同一区二区三区在线绯色 | av永久免费在线观看 | 黄色片哪里可以看 | 人妻系列无码专区免费视频 | 国产综合精品久久亚洲 | 国产精品久久久久久久白皙女 | 欧美黄色大片在线观看 | 久久精品亚洲欧美日韩精品中文字幕 | 成人美女免费网站视频 | 国产视频一区二区三 | A级国产乱理伦片在线播放 69人人 | 久久久欧美日韩精品一区 | 久热中文字幕在线 | 亚洲精彩视频在线 | 精品精品在线视频 | 高潮喷水抽搐无码免费 | 在线成人免费观看 | 国产精成人品localhost |