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52689-U

Supelco

Discovery® DSC-SCX 固相萃取管

bed wt. 1 g, volume 6 mL, pk of 30

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About This Item

分類程式碼代碼:
41115712
NACRES:
NB.21

材料

polypropylene tube

成份

bed wt., 1 g

包裝

pk of 30

技術

solid phase extraction (SPE): suitable

表面積

480 m2/g

容積

6 mL

基質

Silica gel base material (irregularly shaped, acid washed)

基質活性組

sulfonic acid bonding

粒徑

50 μm

孔徑

0.9 mL/g pore volume
70 Å pore diameter

容量

0.8 meq/g total capacity

應用

food and beverages

分離技術

ion exchange

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相關類別

一般說明

助留机理：阳离子交换
样品基质相容性：有机溶液或水溶液

  • 多点键合的苯磺酸官能团，pKa (< 1.0)
  • 反离子为 H+
  • 硅胶基体可与强有机溶剂一起使用（不会收缩/溶胀）
  • 极好的离子交换容量用于净化组合化学反应的溶液相（0.8 毫当量/克）（从反应副产物和多余试剂中移除目标分子）
  • 当从水溶液基质中提取阳离子时，应考虑苯环的存在，它能够提供混合模式作用能力（疏水相互作用）

法律資訊

Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany

訊號詞

Danger

危險分類

Aquatic Chronic 2 - Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1A - Skin Sens. 1

儲存類別代碼

4.1B - Flammable solid hazardous materials

水污染物質分類（WGK）

WGK 3

閃點（°F）

Not applicable

閃點（°C）

Not applicable

Choose from one of the most recent versions:

分析證明 (COA)

Lot/Batch Number
17117201
14566501
12725101
10867401
9333301

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文章

Solid Phase Extraction: Ion Exchange Methodology

SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.

Solid Phase Extraction: Ion Exchange Methodology

SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.

條款

Analysis of Melamine in Milk

Melamine was extracted from milk using Supelco® Discovery® DSC-SCX SPE tubes. Analysis was performed by HPLC, using an Ascentis® Express HILIC column.

Solid Phase Extraction: Normal Phase Methodology

Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.

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