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50881-U
Ascentis® Express 90 Å F5 (2 μm) HPLC Columns
L × I.D. 15 cm × 3 mm UHPLC Column
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About This Item
Codice UNSPSC:
41115700
NACRES:
SB.52
Prezzi e disponibilità al momento non sono disponibili
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Nome del prodotto
Ascentis® Express F5, 2 μm UHPLC Column, 2 μm particle size, L × I.D. 15 cm × 3 mm
Materiali
stainless steel column
Livello qualitativo
agenzia
suitable for USP L43
Nome Commerciale
Ascentis®
Caratteristiche
endcapped
Produttore/marchio commerciale
Ascentis®
Confezionamento
1 ea of
Parametri
1000 bar max. pressure (14500 psi)
60 °C temp. range
tecniche
LC/MS: suitable
UHPLC-MS: suitable
UHPLC: suitable
Lungh. × D.I.
15 cm × 3 mm
Area superficiale
120 m2/g
Impurezze
<5 ppm metals
Matrice
Fused-Core particle platform
superficially porous particle
Gruppo funzionale matrice
PFP (pentafluorophenyl) phase
Dimensione particelle
2 μm
Dimensione pori
90 Å pore size
pH di lavoro
2-8
applicazioni
food and beverages
Tecnica di separazione
reversed phase
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Descrizione generale
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.
Note legali
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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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
Jan Soukup et al.
Journal of chromatography. A, 1374, 102-111 (2014-12-30)
Excess adsorption of water from aqueous acetonitrile mobile phases was investigated on 16 stationary phases using the frontal analysis method and coulometric Karl-Fischer titration. The stationary phases include silica gel and silica-bonded phases with different polarities, octadecyl and cholesterol, phenyl
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