久久人人爽人人爽人人片ⅴ,亚洲有吗无码在线观看

參考價(jià)	面議

產(chǎn)品簡(jiǎn)介

供貨周期	一個(gè)月	規(guī)格	SeQuant? ZIC?-HILIC (3.5μm,200?) 150 x 0
貨號(hào)	1.50479.0001	應(yīng)用領(lǐng)域	醫(yī)療衛(wèi)生,生物產(chǎn)業(yè),地礦,交通,印刷包裝

ZIC®-HILIC親水作用色譜柱

?直接分離極性和親水性化合物

?兩性離子基因通過(guò)共價(jià)鍵合在多孔硅膠上

?超長(zhǎng)的耐受性使得樣品分離的成本很低

什么是親水作用色譜

親水作用色譜是一種直接分離極性和親水性化合物的色譜技術(shù)，為了便于理解，我們可以把它看作為是一種用反相色譜溶劑做流動(dòng)機(jī)動(dòng)的正相色譜。

因此HILIC是：

•親水性的固定相

•以水、有機(jī)溶劑和緩沖鹽做為流動(dòng)相洗脫劑

常見(jiàn)的HILIC方法采用50-90%有機(jī)溶劑和一定比例的水，并且含有低濃度的緩沖鹽。如：乙腈/水/醋酸銨體系。在HILIC方法中，洗脫順序和反相色譜正好相反，即極性越大，保留時(shí)間越長(zhǎng)

描述
產(chǎn)品目錄編號(hào)	150662
概述	SeQuant® ZIC®-cHILIC is designed for improved separation of polar hydrophilic compounds that have proved difficult to separate by reversed-phase HPLC or previous types of HILIC columns. The orientation of its zwitterionic functional group provides more accessible positive charges, which results in a complementary selectivity with more retention particularly for organic acids and other negatively charged compounds. Especially suitable for LC-MS thanks to an extraordinary high column stability and a minimized column bleed. This long 250 mm column is suitable for very complex samples.

產(chǎn)品信息
HS代碼	9027 90 50

GHS安全信息
儲(chǔ)存類別	10 - 13 其它液體及固體

規(guī)格
Pressure	≤ 90 bar
Theoretical Plates (N/m) (Cytosine)	≥ 90000
Symmetry (Cytosine)	0.95 - 1.25

產(chǎn)品料號(hào)	產(chǎn)品貨號(hào)	*產(chǎn)品名稱	*產(chǎn)品規(guī)格
ME1504790001	1.50479.0001	ZIC-HILIC Capillary Columnn	SeQuant® ZIC®-HILIC (3.5µm,200Å) 150 x 0.3 mm