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Merck
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주요 문서

53353-U

Supelco

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

L × I.D. 15 cm × 4.6 mm, HPLC Column

동의어(들):

Core-shell (SPP) Fused Core Phenyl HPLC column

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크기 선택

1 EA
₩1,443,838

₩1,443,838

출고 가능일2025년 4월 24일세부사항

모든 사진(1)

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보기 변경
1 EA
₩1,443,838

About This Item

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

₩1,443,838

출고 가능일2025년 4월 24일세부사항

제품명

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

material

stainless steel column

Quality Level

100

Agency

suitable for USP L11

제품 라인

Ascentis®

특징

endcapped

제조업체/상표

Ascentis®

포장

1 ea of

파라미터

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

기술

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

길이 × I.D.

15 cm × 4.6 mm

표면적

135 m2/g

불순물

<5 ppm metals

Matrix

Fused-Core particle platform
superficially porous particle

기질 활성군

phenylhexyl phase

입자 크기

2.7 μm

공극 크기

90 Å

pH 범위

2-9

응용 분야

food and beverages

분리 기술

reversed phase

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관련 카테고리

일반 설명

The Phenyl-Hexyl phase has unique selectivity arising from solute interaction with the aromatic ring and its delocalized electrons. It is complementary (orthogonal) to both C18 and RP-Amide phases because of this unique aromaticity. The Phenyl-Hexyl phase also tend to exhibit good shape selectivity, which may originate from solute multipoint interaction with the planar ring system. More retention and selectivity will often be observed for solutes with aromatic electron-withdrawing groups (fluorine, nitro, etc.) or with a delocalized heterocyclic ring system such as the benzodiazepine compounds.

애플리케이션

  • 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).

법적 정보

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
USXV004675
USXV004674
USXV004673
USXV004672
USXV004671

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특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

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이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

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
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문서

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.

질문

1–10 / 10 질문  

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

    1 답변

    1. The phenyl-hexyl phase is 100% aqueous compatible.

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

    1 답변

    1. 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.

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

    1 답변

    1. 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.

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  4. 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?

    1 답변

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

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

    1 답변

    1. 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.

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

    1 답변

    1. 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.

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

    1 답변

    1. 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)

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

    1 답변

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

    1 답변

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

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

    1 답변

    1. 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.

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