추천 제품
product name
Ascentis® Express F5, 2 μm UHPLC Column, 2 μm particle size, L × I.D. 3 cm × 3 mm
material
stainless steel column
Agency
suitable for USP L43
제품 라인
Ascentis®
특징
endcapped
제조업체/상표
Ascentis®
포장
1 ea of
파라미터
1000 bar max. pressure (14500 psi)
60 °C temp. range
기술
LC/MS: suitable
UHPLC-MS: suitable
UHPLC: suitable
길이 × I.D.
3 cm × 3 mm
표면적
120 m2/g
불순물
<5 ppm metals
기질
Fused-Core particle platform
superficially porous particle
기질 활성군
PFP (pentafluorophenyl) phase
입자 크기
2 μm
공극 크기
90 Å pore size
작동 pH
2-8
응용 분야
food and beverages
분리 기술
reversed phase
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일반 설명
Ascentis® Express 2.0 μm F5 is a high-speed, UHPLC column based on a Fused-Core® particle design. This particle design exhibits very high column efficiency due to the shallow diffusion paths in the 0.4 μm thick porous shell and the small overall particle size of 2 μm. The bonded, endcapped, dimethylpentafluorophenylpropyl stationary phase of Ascentis® Express 2.0 μm F5 provides a stable, reversed phase packing with electron-deficient phenyl rings due to the presence of electronegative fluorines. In addition to forming pi-pi and mildly steric interactions, F5 phases also retain compounds by polar interactions. Having polar and non-polar character, F5 phases can show dual-mode retention behavior, sometimes producing a “U-shaped” retention as a function of acetonitrile content of the mobile phase, with retention increasing at both low and high concentrations of ACN (reversed-phase and HILIC retention modes). Ascentis® Express 2.0 μm F5 can be used for basic, acidic, or neutral compounds with alternate selectivity from C18.
법적 정보
Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany
Fused-Core is a registered trademark of Advanced Materials Technology, Inc.
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시험 성적서(COA)
Lot/Batch Number
Iltaf Shah et al.
The Journal of steroid biochemistry and molecular biology, 180, 118-128 (2018-02-13)
Research shows that immunoassay techniques are not the best choice for the estimation of vitamin D in human blood samples. The main reasons are that some immunoassays are not able to distinguish between 25-OHD3 and 25-OHD2 vitamin D metabolites. Furthermore
Maria A Khalikova et al.
Talanta, 130, 433-441 (2014-08-28)
The presented work describes the development of a simple, fast and effective on-line SPE-UHPLC-UV/vis method using fused core particle columns for extraction, separation and quantitative analysis of the nine illegal dyes, most frequently found in chilli-containing spices. The red dyes
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
Imran Ali et al.
Journal of separation science, 35(23), 3235-3249 (2012-11-28)
New generation columns, i.e. packed with superficially porous silica particles are available as trade names with following manufacturers: Halo, Ascentis Express, Proshell 120, Kinetex, Accucore, Sunshell, and Nucleoshell. These provide ultra-fast HPLC separations for a variety of compounds with moderate
Jakub Fibigr et al.
Journal of pharmaceutical and biomedical analysis, 120, 112-119 (2016-01-01)
A new high-performance liquid chromatography method using fused-core column for fast separation of resveratrol and polydatin has been developed and used for quality control of nutraceuticals with resveratrol and polydatin content. Retention characteristics (log k) were studied under different conditions
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