Gemini pH Flexible LC Columns
Setting the Standard for pH Method DevelopmentRugged reversed phase HPLC columns that offer extended lifetime under extreme pH conditions and excellent stability for reproducible, high efficiency separations. Take full advantage of high and low pH conditions (pH 1-12) to manipulate selectivity Expect longer column lifetime with patented TWIN-NX™ technology Ideal for analytical and preparative separations of basic and acid…
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All perfect
Analyze
All was perfect. The product was pretty good and application to
Review Date: 27 Sept 2023 | Phenomenex Inc
very excellent column for research and development
Drug analysis by HPLC
Column is very useful with a wide pH range of mobile phase. Column life is also excellent after so many injections. Separation of peaks are very nice.
Review Date: 2 Apr 2022 | Phenomenex Inc
Would advise to have one in-house at any time.
Small molecules pkpd
Easy to use column with reliable performance over a long period of time and use.
Review Date: 26 Feb 2019 | Phenomenex Inc
A great column for small molecules with ionizable groups.
Analysis of small molecules
These columns can be used over a wider range of pH, which makes them much more versatile than the classical silica-based columns. Furthermore, they come in a brad range of bonded phases, particle sizes, pore sizes and dimensions. i found the Gemini SAX particularly useful because I can combine both the ionic strength and the pH of the mobile phase, to impact the selectivity, thus achieving optimal resolution of all my analytes with shorter run times.
Review Date: 27 Jul 2018 | Phenomenex Inc
I have worked with Phenomenex Gemini C18 and Phenomenex Phenyl C6 and obtained very good separation of compounds with aromatic rings, namely phenolics in plant materials (mobile phase of 01.% formic acid + acetonitrile). Phenyl C6 is better if you aim a good selectivity between isomers.
Review Date: 1 Sept 2014 | Phenomenex Inc
steroids
I have some compounds that I can measure only at high pH. This column is a good choice for longer column lifetime.
Review Date: 15 Aug 2013 | Phenomenex Inc
Perfect company, good business and cooperation. Easy to use columns, high resolution, easy to clean. Will recommend to my colleagues and partners with pleasure and without hesitation. I believe it has an excellent future.
Review Date: 7 Aug 2013 | Phenomenex Inc
I like to use this column because it has good selectivity. The life time is long. It is available for pharmaceutical molecules. The contact person is helpful.
Review Date: 7 Aug 2013 | Phenomenex Inc
pharmaceuticals
I have always been happy with Phenomenex columns. The columns work as advertised and if there is any problem, Phenomenex is always willing to provide post sales support.
Review Date: 28 May 2013 | Phenomenex Inc
drug analysis
These columns are very easy to use. They are versatile and can analyze a wide variety of compounds. I use them for environmental samples and for multiple drugs whether they are acidic or basic.
Review Date: 28 May 2013 | Phenomenex Inc
Setting the Standard for pH Method Development
Rugged reversed phase HPLC columns that offer extended lifetime under extreme pH conditions and excellent stability for reproducible, high efficiency separations.
- Take full advantage of high and low pH conditions (pH 1-12) to manipulate selectivity
- Expect longer column lifetime with patented TWIN-NX™ technology
- Ideal for analytical and preparative separations of basic and acidic compounds
Who needs Phenomenex's Gemini HPLC columns? Method Developers: Extreme pH method flexibility Reproducible performance Purification Chemists: Purify bases at high pH Increased loading Increased retention Increased resolution Lab Managers: Extended column lifetime Consistent results.
