Gemini pH Flexible LC Columns by Phenomenex Inc

Manufacturer Phenomenex Inc
4.3
/
5.0
  |  10 reviews
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 acidic compounds Who needs Phenomenex's Gemini HPLC columns? Method Devel... Read more


Gemini pH Flexible LC Columns by Phenomenex Inc product image
Gemini pH Flexible LC Columns
Buy Now

Place your order directly with the manufacturer.




Average Rating: 4.3
10 Scientists have reviewed this product

5 out of 5
Ease of use
4 out of 5
After sales service
4 out of 5
Value for money


  • Status:

    Reviewer
  • Member since: 2014

  • Organization: Charles River laboratories Discovery Groningen



  • Ease of use
    4 out of 5
    After sales service
    5 out of 5
    Value for money
    4 out of 5
Share this Review on LinkedinShare this Review on TwitterShare this Review on Facebook
Would advise to have one in-house at any time.
Rating: 4.3

  • Application Area: Small molecules pkpd

"Easy to use column with reliable performance over a long period of time and use."

Review date: 26 Feb 2019 | Gemini pH Flexible LC Columns
  • Status:

    Advanced Reviewer

  • Member since: 2015

  • Organization: CONTINUUS Pharmaceuticals



  • Ease of use
    4 out of 5
    After sales service
    4 out of 5
    Value for money
    5 out of 5
Share this ReviewShare this Review on TwitterShare this Review
A great column for small molecules with ionizable groups.
Rating: 4.3

  • Application Area: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 | Gemini pH Flexible LC Columns
  • Status:

    Expert Reviewer

  • Member since: 2014

  • Organization: Alfaparf Group



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.3
"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: 01 Sep 2014 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2013

  • Organization: Gedeon Richter Plc.



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.7

  • Application Area: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 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2013

  • Organization: Arpimed LLC



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    5 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.7
"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: 07 Aug 2013 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2013

  • Organization: Richter Gedeon Plc



  • Ease of use
    5 out of 5
    After sales service
    3 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.0
"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: 07 Aug 2013 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2013

  • Organization: US Pharmacopeial Convention



  • Ease of use
    4 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.0

  • Application Area: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 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2013

  • Organization: vanderbilt university



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.7

  • Application Area: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 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2011

  • Organization: Faculty of Pharmacy Cairo University



  • Ease of use
    4 out of 5
    After sales service
    4 out of 5
    Value for money
    5 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.3

  • Application Area:separation proteins and lipids

"The HPLC columns are very accurate, the best way to separate lipids and proteins and amino acids as well as hormones. "

Review date: 23 May 2013 | Gemini pH Flexible LC Columns
  • Status:

    Reviewer

  • Member since: 2007

  • Organization: ISSC/DCU



  • Ease of use
    4 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
Share this ReviewShare this Review on TwitterShare this Review
Rating: 4.0

Review date: 09 Aug 2007 | Gemini pH Flexible LC Columns
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.