成人无码高潮av在线观看_欧洲极品少妇_夂久亚州精华国产精华华液_在线观看亚洲AV每日更新无码_亚洲国产精品无码久久一线_亚洲精品区午夜亚洲精品区

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: 亚洲精品一区23p | 中文字幕第49页 | 第一福利初水视频导航 | 日韩三区三区一区区欧69国产 | 久久精品国产亚洲AV无码偷窥 | 老司机福利在线观看视频 | 欧美激情日韩精品久久久 | 国产成人一区二区在线 | 偷拍粉嫩25位美女视频在线观看 | 国产精品无码免费热播 | 好想被狂躁无码视频在线观看 | 香蕉视频官网 | 男生戳美女两腿中间那个视频 | 性高湖久久久久久久久3小时 | 少妇爆乳无码av无码专区 | 九九国产视频 | 四虎国产精品成人免费久久 | 给我看免费播放的视频 | 在线日本视频 | 亚洲午夜精品A品久久 | 无码av一区在线观看免费 | 中文字幕无线乱码人妻 | 国产成人精品一区二区三区在线 | 亚洲午夜国产精品无码中文字 | 亚洲成人久久一区 | 国产另类视频 | 好姑娘西瓜在线观看免费 | kendralust性潮喷hdbrazzers | 成人国产精品一区二区视频 | 欧美黑人欧美精品刺激 | 高大丰满40岁东北少妇 | 亚洲精品无码高潮喷水a片软 | 韩国18禁啪啪无遮挡免费 | 无码任你躁久久久久久久 | 久久综合久久综合久久综合 | 国产情侣大量精品视频 | 国产精品久久毛片A片 | 被债主在夫面前人妻被强 | 亚洲午夜无码毛片AV久久京东热 | 欧洲精品在线观看 | 国产仑乱无码内谢 |