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Merck
CN
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20331

Porapak™ 多孔聚合物吸附剂

matrix Porapak Q, 80-100 mesh, bottle of 75 cc

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UNSPSC代码:
23201100

形式

solid

质量水平

100

包装

bottle of 75 cc

参数

250 °C temp. limit

技术

gas chromatography (GC): suitable

表面积

~550 m2/g

基质

Porapak Q

粒径

80-100 mesh

密度

~0.34 g/mL (free fall density)

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相关类别

一般描述

Porapak多孔聚合物是一种球形珠粒，具有一致的粒径、孔隙率和表面积，有助于确保分析的精确度和准确度。

有关我们任何吸附剂的更多信息，请访问 sigma-aldrich.com/adsorbents

法律信息

PoraPak is a trademark of Waters

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is Porapak™ Porous Polymer Adsorbent Q, Product 20331?

    Porapak Q is an ethylvinylbenzene and divinylbenzene copolymer bead which is used in packed column gas chromatography for separating light gases and volatiles.

  4. What does the 80/100 stand for in the product description of Porapak™ Porous Polymer Adsorbent Q, Product 20331?

    The 80/100 is refering to the mesh size range of the actual Porapak Q particles.  The larger the mesh number the smaller the diameter of the bead.  In this case 100 refers to a diameter of 149 microns and 80 refers to a diameter of 177 microns.  Therefore, the particles in this product will range between 149 and 177 microns.

  5. Is this product a packed column?

    This is packing material only; it is not a column. Some endusers will purchase this bottle of packing and prepare their own packed columns.

  6. How can I purchase a column that is packed with this material?

    Most packed column are custom made and require that you obtain a quotation. Please contact our Customer & Sales Services group at phone number (800)-247-6628, fax number (800)-447-3044 or email CIBelle@sial.com for additional information.

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    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. 

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Scientific Bases for the Preparation of Heterogeneous Catalysts.
Gaigneaux E
Science, 751-752 (2010)
Shayla Salzman et al.
Science advances, 6(24), eaay6169-eaay6169 (2020-06-26)
Most cycads engage in brood-site pollination mutualisms, yet the mechanism by which the Cycadales entice pollination services from diverse insect mutualists remains unknown. Here, we characterize a push-pull pollination mechanism between a New World cycad and its weevil pollinators that
Poole C.
Gas Chromatography, 127-130 (2012)
Grob RL and Barry EF.
Modern Practice of Gas Chromatography, 79-83 (2004)

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