跳转至内容
Merck
CN
所有图片(1)

文件

53353-U

Supelco

Ascentis® Express 90 Å Phenyl-Hexyl (2.7 μm) HPLC Columns

L × I.D. 15 cm × 4.6 mm, HPLC Column

别名:

Core-shell (SPP) Fused Core Phenyl HPLC column

登录查看公司和协议定价
所有图片(1)

About This Item

UNSPSC代码:
41115700
eCl@ss:
32110501
NACRES:
SB.52

product name

Ascentis® Express Phenyl-Hexyl，2.7μm HPLC色谱柱, 2.7 μm particle size, L × I.D. 15 cm × 4.6 mm

物料

stainless steel column

质量水平

100

Agency

suitable for USP L11

产品线

Ascentis®

特点

endcapped

制造商/商品名称

Ascentis®

包装

1 ea of

参数

60 °C temp. range
600 bar max. pressure (9000 psi)

技术

HPLC: suitable
LC/MS: suitable
UHPLC-MS: suitable
UHPLC: suitable

长度 × 内径

15 cm × 4.6 mm

表面积

135 m2/g

杂质

<5 ppm metals

基质

Fused-Core particle platform
superficially porous particle

基质活性基团

phenylhexyl phase

粒径

2.7 μm

孔径

90 Å

pH值范围

2-9

应用

food and beverages

分离技术

reversed phase

正在寻找类似产品? 访问 产品对比指南

相关类别

一般描述

由于溶质与键合相的芳香环及其离域电子发生相互作用，使Phenyl-Hexyl固定相具有独特的选择性。这种独特的芳香基选择性使其与C18和RP-酰胺固定相互补（正交）。Phenyl-Hexyl固定相也倾向于具有良好的形状选择性，这可能来自于溶质与平面环系统的多点相互作用。对于具有芳族吸电子基团（氟、硝基等）或具有离域杂环系统（如苯二氮类化合物）的溶质，通常具有更强的保留性和选择性。

应用

  • A Different Perspective on the Characterization of a New Degradation Product of Flibanserin With HPLC-DAD-ESI-IT-TOF-MSn and Its Pharmaceutical Formulation Analysis With Inter-Laboratory Comparison.: This study utilizes the Ascentis® Express Phenyl-Hexyl, 2.7 μm HPLC column to characterize degradation products of flibanserin, demonstrating its efficacy in high-resolution analytical applications (Geven et al., 2023).
  • HPLC with spectrophotometric or mass spectrometric detection for quantifying very-long chain fatty acids in human plasma and its association with cardiac risk factors.: The Ascentis® Express Phenyl-Hexyl column was employed for precise quantification of fatty acids, linking its use to critical clinical research on cardiac risk factors (Shrestha et al., 2021).
  • A fully automated and fast method using direct sample injection combined with fused-core column on-line SPE-HPLC for determination of ochratoxin A and citrinin in lager beers.: This research highlights the efficiency of the Ascentis® Express Phenyl-Hexyl column in detecting contaminants in beverages, emphasizing its role in food safety analysis (Lhotska et al., 2016).
  • A study of retention characteristics and quality control of nutraceuticals containing resveratrol and polydatin using fused-core column chromatography.: This study explores the retention characteristics of nutraceuticals using the Ascentis® Express Phenyl-Hexyl column, showcasing its utility in quality control of health supplements (Fibigr et al., 2016).
  • An on-line SPE-HPLC method for effective sample preconcentration and determination of fenoxycarb and cis, trans-permethrin in surface waters.: The Ascentis® Express Phenyl-Hexyl column was integral in preconcentrating and analyzing pesticide residues in environmental samples, underscoring its environmental analytical applications (Satinsky et al., 2015).

法律信息

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

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

Choose from one of the most recent versions:

分析证书(COA)

Lot/Batch Number
USXV004405
USXV004404
USXV004403
USXV004402
USXV004401

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

  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 special about Ascentis Express?

    Ascentis Express columns provide a breakthrough in HPLC performance. Based on Fused-Core particle technology, Ascentis Express provides the benefits of sub-2 μm particles but at much lower backpressure.  These benefits include the capability of providing fast HPLC and higher resolution chromatography.  The Fused-Core particle consists of a 1.7 μm solid core and a 0.5 μm porous shell.  A major benefit of the Fused-Core particle is the small diffusion path (0.5 μm) compared to conventional fully porous particles. The shorter diffusion path reduces axial dispersion of solutes and minimizes peak broadening.

  4. Can I use Ascentis Express on any type of HPLC system?

    Ascentis Express HPLC columns are capable of use on standard HPLC systems as well as UHPLC systems.  Columns are packed in high pressure hardware capable of withstanding the pressures used in UHPLC systems.

  5. Can I use Ascentis Express on a UHPLC system?

    Yes.  Ascentis Express columns are packed in a way making them suitable for these ultra high pressure instruments.  In fact, Ascentis Express outperforms sub-2 μm micron columns on many applications since Ascentis Express provides the benefits of sub-2 μm particles but at much lower back pressure.  These benefits include the capability of providing fast HPLC and higher resolution chromatography.  The Fused-Core particle consists of a 1.7 μm solid core and a 0.5 μm porous shell.  A major benefit of the Fused-Core particle is the small diffusion path (0.5 μm) compared to conventional fully porous particles. The shorter diffusion path reduces axial dispersion of solutes and minimizes peak broadening.

  6. 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.

  7. 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. 

  8. Is there anything special I need to do to my HPLC system to use Ascentis Express?

    Nothing special is required to use Ascentis Express HPLC columns. To obtain the full benefits of Ascentis Express, one should minimize dispersion or instrument bandwidth in the HPLC system (tubing, detector flow cell) as well as confirm the detector response system is set at a fast level. For more information, request Guidelines for Optimizing Systems for Ascentis Express Columns (T407102)

  9. How can I measure my instrument bandwidth (IBW) and determine what Ascentis® Express HPLC Columns can be used with minimal efficiency loss created by too much internal instrument volume?

    The Guide to Dispersion Measurement has simple instructions on how to measure IBW and can be found at sigma-aldrich.com/express.

  10. Do I need special fittings and tubing to connect Ascentis® Express HPLC Columns?

    While operating pressures may not exceed the 400 bar (6,000 psi) capability of your traditional instruments, sustained pressures of about 200 bar (3,000 psi) will exceed the recommended pressure for conventional PEEK tubing and fittings at the column inlet. We recommend changing to stainless steel fittings in all high pressure locations and have designed special High Performance HPLC Fittings/Interconnects that will stay tight at pressures of 1,000 bar (15,000 psi) or greater, even when elevated column temperatures are employed.

  11. What flow rate should I use with Ascentis® Express HPLC Columns?

    Based on the minimum in the van Deemter curves, higher flows than 5um particle columns are required in order to maximize Ascentis Express column efficiency. The suggested starting point for flow rate for Ascentis Express columns: 1.6 mL/min for 4.6 mm ID;  0.8 mL/min for 3.0 mm ID; and 0.4mL/min for 2.1 mm ID.

  12. Can Ascentis® Express HPLC Columns be used for LC-MS?

    Express Fused-Core™ particles were designed with LC-MS in mind. Even extremely short column lengths exhibit sufficient plate counts to show high resolving power. The flat van Deemter plots permit resolution to be maintained at very high flow rates to maximize sample throughput. All Ascentis stationary phases have been evaluated for MS compatibility during their development, and the Express phases are no exception. You can expect extremely low column bleed and background while maintaining longest possible column lifetime. A bonus of Ascentis Express columns for high throughput UHPLC and LC-MS is that they are extremely rugged and highly resistant to plugging, a very common failure mode for competitor columns.

  13. What is the pressure rating for Ascentis® Express Phenyl-Hexyl HPLC Columns?

    This Ascentis Express column is stable to operating pressures up to 600 bar (9000 psi).

  14. Can a 100% aqueous mobile phase be used with the Phenyl-Hexyl HPLC column?

    The phenyl-hexyl phase is 100% aqueous compatible.

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

    Ask a Scientist here.

C M Chavez-Eng et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1011, 204-214 (2016-01-17)
An ultra-high performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method for the simultaneous determination of (4S,5R)-5-[3,5-bis (trifluoromethyl)phenyl]-3-{[4'-fluoro-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl] methyl}-4-methyl-1,3-oxazolidin-2-one (anacetrapib, I) and [(13)C5(15)N]-anacetrapib, II in human plasma has been developed to support a clinical study to determine the absolute bioavailability of I.
E Lesellier
Journal of chromatography. A, 1266, 34-42 (2012-11-03)
The recent introduction of new stationary phases for liquid chromatography based on superficially porous particles, called core-shell or fused-core, dramatically improved the separation performances through very high efficiency, due mainly to reduced eddy diffusion. However, few studies have evaluated the
Petr Chocholouš et al.
Talanta, 103, 221-227 (2012-12-04)
Currently, for Sequential Injection Chromatography (SIC), only reversed phase C18 columns have been used for chromatographic separations. This article presents the first use of three different stationary phases: three core-shell particle-packed reversed phase columns in flow systems. The aim of
Ivona Lhotská et al.
Analytical and bioanalytical chemistry, 408(12), 3319-3329 (2016-03-20)
A new fast and sensitive method based on on-line solid-phase extraction on a fused-core precolumn coupled to liquid chromatography with fluorescence detection has been developed for ochratoxin A (OTA) and citrinin (CIT) determination in lager beer samples. Direct injection of
Alex D Batista et al.
Talanta, 133, 142-149 (2014-12-02)
On-line sample pretreatment (clean-up and analyte preconcentration) is for the first time coupled to sequential injection chromatography. The approach combines anion-exchange solid-phase extraction and the highly effective pentafluorophenylpropyl (F5) fused-core particle column for separation of eight sulfonamide antibiotics with similar
查看所有相关文献

商品

Ascentis® Express Phenyl Hexyl Columns for U/HPLC

Improve your reversed phase selectivity for polar aromatics and heterocyclic compounds with the Ascentis® Express Phenyl-Hexyl U/HPLC column.

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门