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重要文件

377635

Sigma-Aldrich

十八烷基-官能化硅胶

200-400 mesh, extent of labeling: 20-22% loading

同義詞:

C18 silica gel

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About This Item

MDL號碼:
分類程式碼代碼:
12352200
NACRES:
NA.22
暫時無法取得訂價和供貨情況

形狀

powder

品質等級

標籤範圍

20-22% loading

表面積

~550 m2/g

基質

irregular silica particle platform

基質活性組

C18 phase

粒徑

200-400 mesh

孔徑

60 Å pore size

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應用

Octadecyl-functionalized silica gel is generally used as a stationary phase [1][2] for low- and medium-pressure reversed-phase liquid chromatography.[3]

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析證明 (COA)

Lot/Batch Number

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Synthesis and characterization of polymeric C18 stationary phases for liquid chromatography
Sander LC and Wise SA
Analytical Chemistry, 56(3), 504-510 (1984)
Antitrypanosomatid activity of flavonoid glycosides isolated from Delphinium gracile, D. staphisagria, Consolida oliveriana and from Aconitum napellus subsp. Lusitanicum
Marin C, et al.
Phytochemistry Letters, 19(2), 196-209 (2017)
Acylated flavonol glycosides from Delphinium staphisagria
Diaz JG, et al.
Phytochemistry Letters, 1(2), 125-129 (2008)

Questions

1–5 of 5 Questions  
  1. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  2. What is the pH stability of Product 377635, Octadecyl-functionalized silica gel?

    1 answer
    1. The product is expected to be unstable when used at pH above 7.5.

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  3. What is the solubility of Product 377635, Octadecyl-functionalized silica gel?

    1 answer
    1. This product is not soluble. It can be swelled in organic solvents such as methanol or acetonitrile.

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  4. How is Product 377635, Octadecyl-functionalized silica gel, prepared?

    1 answer
    1. It is prepared by the reaction of silica gel with n-octadecyltrichlorosilane. After hydrolysis of the unreacted chloro groups, silanol groups on the silica are blocked with trimethylsilyl groups.

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  5. How can Product 377635, Octadecyl-functionalized silica gel resin be cleaned of stubborn material?

    1 answer
    1. One can usually start with 40-50% chloroform in methanol and see if that cleans the resin. If not, try increasing the chloroform content gradually until it is 100%.

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