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: 伊人一级 | av网站的免费观看 | 狠狠色综合久久 | 日p视频免费看 | 污网站在线免费观看 | 国产一级特黄AAAA级婬片 | 高黄暴H日本在线观看 | 久久久久亚洲AV成人片一区 | 一区二区免费高清观看国产丝瓜 | 欧美日韩在线中文 | 岛国av一区二区三区 | 看片日韩| 日本91av | 宅男99| 国产精品女人网站 | www.久久久 | 国产精品久久久久9999爆乳 | 国产亚洲欧美日韩高清 | 阿公抱着我边摸边吃奶视频 | 挤奶福利视频在线观看 | 一区二区三区视频免费观看 | 大乳美女a级三级三级 | 久久午夜国产精品www护士让 | 国产a网 | 国产精品一区二区欧美黑人喷潮水 | 求一个男人都懂得www | 一级片片 | 欧美成人高清 | 日韩av一区二区在线播放 | 在线免费观看污网站 | 久久久亚洲精品国产 | 天天看天天操 | 一级网站 | 国产午夜精品一二区理论影院 | 久久久久夜夜夜精品国产 | 伊人网视频在线观看 | 中文字幕久久精品无码 | 就去色播| 久热精品视频在线观看 | 国产激情久久久久影院 | 中文字幕视频免费 |