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Showing results for caltrex
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Characterization of calixarene-bonded stationary phases.
Schneider C, Menyes U, Jira T. Schneider C, et al. J Sep Sci. 2010 Oct;33(19):2930-42. doi: 10.1002/jssc.201000281. J Sep Sci. 2010. PMID: 20603840
The commercially available unsubstituted and p-tert-butyl-substituted Caltrex() columns have been intensively studied and characterized in our workgroup. ...An overview about the synthesis, retention and selectivity properties of Caltrex() columns is given here....
The commercially available unsubstituted and p-tert-butyl-substituted Caltrex() columns have been intensively studied and characteriz …
Determination of Atenolol and Trimetazidine in Pharmaceutical Tablets and Human Urine Using a High Performance Liquid Chromatography-Photo Diode Array Detection Method.
El-Alfy W, Ismaiel OA, El-Mammli MY, Shalaby A. El-Alfy W, et al. Int J Anal Chem. 2019 Jan 3;2019:9625849. doi: 10.1155/2019/9625849. eCollection 2019. Int J Anal Chem. 2019. PMID: 30719043 Free PMC article.
A simple RP-HPLC-PDA method for determination of atenolol (ATN) and trimetazidine (TMZ) in human urine and tablets has been developed. Analytes were separated on a Caltrex BI column (125 4.0 mm, 5 mum) with 25mM potassium dihydrogen phosphate pH 3.3, methanol, and acetonit …
A simple RP-HPLC-PDA method for determination of atenolol (ATN) and trimetazidine (TMZ) in human urine and tablets has been developed. Analy …
Separation of 9,10-anthraquinone derivatives: evaluation of functionalised stationary phases in reversed phase mode.
Nowik W, Bonose-Crosnier de Bellaistre M, Tchapla A, Héron S. Nowik W, et al. J Chromatogr A. 2011 Jun 10;1218(23):3636-47. doi: 10.1016/j.chroma.2011.04.012. Epub 2011 Apr 12. J Chromatogr A. 2011. PMID: 21529815
The results point out the aromatic and calixarene bonded silica as the most interesting in terms of symmetry and critical pairs number. Finally we tested the performance of Caltrex Resorcinaren, Pursuit XRs DP and Luna Phenyl-Hexyl on real samples of anthraquinone natural …
The results point out the aromatic and calixarene bonded silica as the most interesting in terms of symmetry and critical pairs number. Fina …
Quantitative determination of nystatin in human plasma using LC-MS after inhalative administration in healthy subjects.
Scheuch E, Giessmann T, Siegmund W. Scheuch E, et al. J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Nov 21;844(1):84-8. doi: 10.1016/j.jchromb.2006.07.015. Epub 2006 Aug 4. J Chromatogr B Analyt Technol Biomed Life Sci. 2006. PMID: 16890501
The Chromatography was performed isocratically using a reversed phase Caltrex Resorcinearene column. The mobile phase consisted of 5mM ammonium formate buffer and acetonitrile (40:60, v/v). ...
The Chromatography was performed isocratically using a reversed phase Caltrex Resorcinearene column. The mobile phase consisted of 5m …
Spectrophotometric and stability-indicating high-performance liquid chromatographic determinations of terbutaline sulfate.
Hashem HA, Elmasry MS, Hassan WE, Tründelberg C, Jira T. Hashem HA, et al. J AOAC Int. 2012 Sep-Oct;95(5):1412-7. doi: 10.5740/jaoacint.11-056. J AOAC Int. 2012. PMID: 23175974
Beer's Law is obeyed in the concentration range of 1-6 microg/mL. In the HPLC procedure, the separation was carried out on a Caltrex AIII column, a relatively new packing material consisting of silica-bonded calix[8]arene, using an isocratic binary mobile phase, acetonitri …
Beer's Law is obeyed in the concentration range of 1-6 microg/mL. In the HPLC procedure, the separation was carried out on a Caltrex …
Characterization of 1,3-alternate calix[4]arene-silica bonded stationary phases and their comparison to selected commercial columns by using principal component analysis.
Sliwka-Kaszyńska M, Gorczyca G, Slebioda M. Sliwka-Kaszyńska M, et al. J Chromatogr A. 2010 Jan 15;1217(3):329-36. doi: 10.1016/j.chroma.2009.11.052. Epub 2009 Nov 20. J Chromatogr A. 2010. PMID: 19962709
The set of tests commonly used for evaluation of commercially available stationary phases was applied to assess fundamental chromatographic properties of the calixarene phases. The new calixarene phases were compared to each other, to Caltrex and LiChrosorb C-18 columns. P …
The set of tests commonly used for evaluation of commercially available stationary phases was applied to assess fundamental chromatographic …
Selectivity of calixarene-bonded silica phases in HPLC: Description of special characteristics with a multiple term linear equation at different methanol concentrations.
Schneider C, Jira T. Schneider C, et al. J Sep Sci. 2010 Oct;33(19):2943-55. doi: 10.1002/jssc.201000497. J Sep Sci. 2010. PMID: 20812230
The obtained parameters are used to describe retention and selectivity of the novel Caltrex() phases and to elucidate underlying mechanisms of retention. ...
The obtained parameters are used to describe retention and selectivity of the novel Caltrex() phases and to elucidate underlying mech …
Comparison of the chromatographic behavior of tricyclic neuroleptics on calixarene-bonded, monolithic and conventional RP-HPLC columns.
Hashem H, Jira T. Hashem H, et al. Comb Chem High Throughput Screen. 2007 Jun;10(5):387-96. doi: 10.2174/138620707781662826. Comb Chem High Throughput Screen. 2007. PMID: 17896934
The effect of different chromatographic conditions, such as buffer concentration and type of organic modifier, on the retention behavior of nine tricyclic neuroleptics on three different RP-HPLC columns was investigated. Two recently developed columns, calixarene-bonded (CALTR …
The effect of different chromatographic conditions, such as buffer concentration and type of organic modifier, on the retention behavior of …