无码人妻一区二区三区在线视频|妺妺窝人体色www在线小说|少妇又紧又色又爽又刺激视频|精品国产一区二区三区久久影院

歡迎來到北京豫維科技有限公司網(wǎng)站!

熱門關鍵詞:蘇瑪罐,原子吸收分光光度計,環(huán)境監(jiān)測產(chǎn)品,液相色譜,色譜柱。

產(chǎn)品中心您現(xiàn)在的位置:首頁 > 產(chǎn)品展示 > 通用色譜配件 > 行業(yè)專用色譜柱 > Dionex BorateTrap 硼酸鹽捕獲色譜柱

Dionex BorateTrap 硼酸鹽捕獲色譜柱

更新時間:2019-11-12

簡要描述:

Dionex BorateTrap 硼酸鹽捕獲色譜柱
當放置洗脫液泵和注射閥,陷阱上的碳水化合物分析物的效率或保留時間沒有影響之間。

  免費咨詢:010-61755520

  發(fā)郵件給我們:yuweichina86@163.com

Dionex  BorateTrap 硼酸鹽捕獲色譜柱

對于使用HPAE-PAD檢測IC碳水化合物分析中*的性能,使用的Thermo Scientific戴安BorateTrap在線捕獲柱除去硼酸鹽污染。當放置洗脫液泵和注射閥,陷阱上的碳水化合物分析物的效率或保留時間沒有影響之間。的戴安BorateTrap柱消除了甘露糖,果糖,以及從硼酸污染引起糖醇峰拖尾。

 

 

Dionex  BorateTrap 硼酸鹽捕獲色譜柱

訂貨信息:

Dionex  BorateTrap 硼酸鹽捕獲柱

Borate   Trap Column              047078

 

The BorateTrap is an in-line trap column, and is recommended for optimal performance during carbohydrate analysis.

  • In-line trap column removes borate contamination for HPAE-PAD.

  • Eliminates peak tailing for mannose, fructose, and sugar alcohols resulting from borate contamination. 

Borate contamination in eluents can cause a significant loss of peak efficiency, especially for mannose, fructose, and reduced monosaccharides. If borate is present in the eluent, it binds both to the anion-exchange column and to the carbohydrate analytes. The carbohydrate-borate complex is less efficiently eluted from the anion-exchanger than is the carbohydrate, resulting in peak tailing, particularly where vicinal cis hydroxyl groups are present, such as for mannose and sugar alcohols. The BorateTrap eliminates peak tailing for mannose, fructose, and reduced monosaccharides, resulting from contamination of the eluent from borate. Therefore, the BorateTrap is highly recommended for optimal performance during carbohydrate analysis.

The BorateTrap is a 4 × 50 mm column placed between the eluent pump and the injection valve to remove borate contamination from eluents used for HPAE-PAD. Because it is placed before the injection valve, it has no effect on the efficiencies or retention times of the carbohydrate analytes. This column is packed with a 20-μm high-capacity resin that has high selectivity for borate. The resin used in the BorateTrap is functionalized with a polyol capable of complexing borate in the presence of hydroxide. Borate is a known contaminant in laboratory water supplies. In chromatography, borate contamination of HPLC eluents may be a result of degrading deionized water systems or as leachate from borosilicate glassware.

留言框

  • 產(chǎn)品:

  • 您的單位:

  • 您的姓名:

  • 聯(lián)系電話:

  • 常用郵箱:

  • 省份:

  • 詳細地址:

  • 補充說明:

  • 驗證碼:

    請輸入計算結果(填寫阿拉伯數(shù)字),如:三加四=7
少妇厨房愉情理9仑片视频| 亚洲av无码专区在线观看成人| 香港日本三级在线播放| 国产精品男人在线播放| 亚洲精品少妇一区二区| 精品欧洲av无码一区二区| 日本少妇被黑人猛cao| 亚洲色欲综合一区二区三区| 亚洲旡码欧美大片| 日韩在线不卡免费视频一区| 秋霞无码一区二区| 日本欧美一区二区三区在线播放| 亚洲国产成人资源在线| 少妇愉情理伦片丰满丰满午夜| 日韩a片无码毛片免费看| 国产三级精品三级在线观看| 久久精品国产清自在天天线| 亚洲av无码成人精品国产| 精品国际久久久久999波多野 | 无码人妻丰满熟妇区毛片| 风流老熟女一区二区三区| 又黄又爽又色视频免费| www国产精品内射老师| 无码人妻丰满熟妇区bbbbxxxx| 亚洲第一福利网站在线观看| 无码一区二区三区中文字幕| 爆乳熟妇一区二区三区| 丁香五月缴情综合网| 亚洲国产精品久久久天堂| 免费无码专区毛片高潮喷水| 内射白浆一区二区在线观看| 性一交一乱一伦a片| 全黄h全肉边做边吃奶视频| 日本熟妇人妻xxxxx| 国产午夜精品一区二区| 香蕉久久福利院| 国产精品久久久久久久久久免费| 国产乱了真实在线观看| 国产免费无遮挡吃奶视频| 妺妺窝人体色www聚色窝| 人妻少妇偷人精品视频|