INDUSTRIES
Phase Transfer Catalysts
Glycidyl Ethers
Strong Bases
Tetrabutylammonium Fluoride (TBAF)
Specialty Salts
SELECTED PUBLICATIONS ON DISPLACEMENT CHROMATOGRAPHY
Ion Exchange Displacement Chromatography
Hydrophobic Interaction Displacement Chromatography
Reverse Phase Displacement Chromatography

Trace Component Amplification
SACHEM Published Articles
Other Interesting Articles

Ion Exchange Displacement Chromatography


  1. Zhang, W.-N.; He, H.-B.; Feng, Y.-Q.; Da, S.-L., Separation of phosphatidylcholine and phosphatidylethanolamine by using high-performance displacement chromatography. Journal of Chromatography, A 2004, 1036, (2), 145-154.
  2. Xiang, R.; Horvath, C.; Wilkins, J. A., Elution-Modified Displacement Chromatography Coupled with Electrospray Ionization-MS: On-Line Detection of Trace Peptides at Low-Femtomole Level in Peptide Digests. Analytical Chemistry 2003, 75, (8), 1819-1827.
  3. Tugcu, N.; Deshmukh, R. R.; Sanghvi, Y. S.; Cramer, S. M., Displacement chromatography of anti-sense oligonucleotide and proteins using saccharin as a non-toxic displacer. Reactive & Functional Polymers 2003, 54, (1-3), 37-47.
  4. Schmidt, B.; Wandrey, C.; Freitag, R., Investigation of particle-based and monolithic columns for cation exchange protein displacement chromatography using poly(diallyl-dimethylammonium chloride) as displacer. Journal of Chromatography, A 2003, 1018, (2), 155-167.
  5. Wilkins, J. A.; Xiang, R.; Horvath, C., Selective enrichment of low-abundance peptides in complex mixtures by elution-modified displacement chromatography and their identification by electrospray ionization mass spectrometry. Analytical Chemistry 2002, 74, (16), 3933-3941.
  6. Tugcu, N.; Deshmukh, R. R.; Sanghvic, Y. S.; Moored, J. A.; Cramer, S. M., Purification of an oligonucleotide at high column loading by high affinity, low-molecular-mass displacers. Journal of chromatography. A 2001, 923, (1-2), 65-73.
  7. Grahek, R.; Milivojevic, D.; Bastarda, A.; Kracun, M., Chromatographic purification of some 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors. Journal of chromatography. A 2001, 918, (2), 319-24.
  8. Shukla, A. A.; Deshmukh, R. R.; Moore, J. A.; Cramer, S. M., Purification of oligonucleotides by high affinity, low molecular weight displacers. Biotechnology progress 2000, 16, (6), 1064-70.
  9. Ruaan, R. C.; Yang, A.; Hsu, D., Bifunctional adsorbents for hydrophobic displacement chromatography of proteins. Biotechnology progress 2000, 16, (6), 1132-4.
  10. Kumar, A.; Galaev, I. Y.; Mattiasson, B., Polymer displacement/shielding in protein chromatography. Journal of chromatography. B, Biomedical sciences and applications 2000, 741, (2), 103-13.
  11. Schmidt, B.; Wandrey, C.; Vogt, S.; Freitag, R.; Holzapfel, H., Polycations as displacer in high-performance bioseparation. Journal of chromatography. A 1999, 865, (1-2), 27-34.
  12. Ramanan, S.; Velayudhan, A., Displacement chromatography of chemotactic peptides. Journal of Chromatography, A 1999, 830, (1), 91-104.
  13. Freitag, R.; Vogt, S., Separation of plasmid DNA from protein and bacterial lipopolysaccharides using displacement chromatography. Cytotechnology 1999, 30, (1-3), 159-167.
  14. Vogt, S.; Freitag, R., Displacement Chromatography Using the UNO Continuous Bed Column as a Stationary Phase. Biotechnology Progress 1998, 14, (5), 742-748.
  15. Shukla, A. A.; Hopfer, R. L.; Chakravarti, D. N.; Bortell, E.; Cramer, S. M., Purification of an Antigenic Vaccine Protein by Selective Displacement Chromatography. Biotechnology Progress 1998, 14, (1), 92-101.
  16. Luellau, E.; von Stockar, U.; Vogt, S.; Freitag, R., Development of a downstream process for the isolation and separation of monoclonal immunoglobulin A monomers, dimers and polymers from cell culture supernatant. Journal of chromatography. A 1998, 796, (1), 165-75.
  17. Barnthouse, K. A.; Trompeter, W.; Jones, R.; Inampudi, P.; Rupp, R.; Cramer, S. M., Cation-exchange displacement chromatography for the purification of recombinant protein therapeutics from variants. Journal of Biotechnology 1998, 66, (2,3), 125-136.
  18. Vogt, S.; Freitag, R., Comparison of anion-exchange and hydroxyapatite displacement chromatography for the isolation of whey proteins. Journal of Chromatography, A 1997, 760, (1), 125-137.
  19. Kundu, A.; Cramer, S. M., Low-molecular-weight displacers for high-resolution protein separations. Analytical biochemistry 1997, 248, (1), 111-6.
  20. Velayudhan, A.; Horvath, C., Characterizing, and Compensating for, Enrichment Effects in Displacement Chromatography with Multicomponent Carriers. Industrial & Engineering Chemistry Research 1995, 34, (8), 2789-95.
Hydrophobic Interaction Displacement Chromatography
  1. Xia, F.; Nagrath, D.; Garde, S.; Cramer, S. M., Evaluation of selectivity changes in HIC systems using a preferential interaction based analysis. Biotechnology and Bioengineering 2004, 87, (3), 354-363.
  2. Sunasara, K. M.; Xia, F.; Gronke, R. S.; Cramer, S. M., Application of hydrophobic interaction displacement chromatography for an industrial protein purification. Biotechnol Bioeng 2003, 82, (3), 330-9.
  3. Qi, Y.; Huang, J., Displacement chromatography of isomers and therapeutic compounds. J Chromatogr A 2002, 959, (1-2), 85-93.
  4. Shukla, A. A.; Sunasara, K. M.; Rupp, R. G.; Cramer, S. M., Hydrophobic displacement chromatography of proteins. Biotechnol Bioeng 2000, 68, (6), 672-80.
  5. Shukla, A. A.; Deshmukh, R. R.; Moore, J. A.; Cramer, S. M., Purification of oligonucleotides by high affinity, low molecular weight displacers. Biotechnol Prog 2000, 16, (6), 1064-70.
  6. Ruaan, R. C.; Yang, A.; Hsu, D., Bifunctional adsorbents for hydrophobic displacement chromatography of proteins. Biotechnol Prog 2000, 16, (6), 1132-4.
  7. Klimchak, R. J.; Wang, S., The displacement effect of phenylalanine on lysozyme elution in hydrophobic interaction chromatography. Biotechnology Techniques 1997, 11, (7), 497-501.
  8. Antia, F. D.; Fellegvari, I.; Horvath, C., Displacement of Proteins in Hydrophobic Interaction Chromatography. Industrial & Engineering Chemistry Research 1995, 34, (8), 2796-804.
Reverse Phase Displacement Chromatography
  1. Sunasara, K. M.; Rupp, R. G.; Cramer, S. M., Purification of Recombinant Brain Derived Neurotrophic Factor Using Reversed Phase Displacement Chromatography. Biotechnology Progress 2001, 17, (5), 897-906.
  2. Grahek, R.; Milivojevic, D.; Bastarda, A.; Kracun, M., Chromatographic purification of some 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors. Journal of chromatography. A 2001, 918, (2), 319-24.
  3. Husband, D. L.; Mant, C. T.; Hodges, R. S., Development of simultaneous purification methodology for multiple synthetic peptides by reversed-phase sample displacement chromatography. Journal of Chromatography, A 2000, 893, (1), 81-94.
  4. Ramanan, S.; Velayudhan, A., Displacement chromatography of chemotactic peptides. Journal of Chromatography, A 1999, 830, (1), 91-104.
  5. Jankowski, J.; Potthoff, W.; Zidek, W.; Schluter, H., Purification of chemically synthesized dinucleoside(5',5') polyphosphates by displacement chromatography. Journal of Chromatography, B: Biomedical Sciences and Applications 1998, 719, (1 + 2), 63-70.
  6. Rathore, A. S.; Horvath, C., Displacement chromatography with on-column isomerization. Journal of Chromatography, A 1997, 787, (1 + 2), 1-12.

Trace Component Amplification

SACHEM Published Articles     

  1. Haymore, Barry; Little, Charles; Hoffman, Rosemary; Stevenson, Robert; Displacement Chromatography for  Rapid Protein Purification in the Laboratory. American Biotechnology Laboratory. February 2008.
  2. Haymore, Barry; Joshi, Hemant; Little, Charles; Hoffman, Rosemary; Stevenson, Robert; Ultrasensitive Impurity Profiles by Displacement Chromatography: A Comparative Study. American Biotechnology Laboratory. October 2007.
  3. Little, Charles. Displacement Chromatography Comes of Age. Chromatography Techniques. Sept/Oct 2008.


Other Interesting Articles 

  1. Curling, John. HISTORY OF CHROMATOGRAPHY: Process Chromatography: Five Decades of Innovation. BioPharm International. Feb 2, 2007.

Available Products

Benzyltrimethylammonium Hydroxide

40%, MeOH (BTMA-OH 40M) CAS# 100-85-6/67-56-1

Benzyltrimethylammonium Hydroxide

20%, Aqueous, Envure™ (Envure™-813) CAS# 100-85-6
M/SDS  |  Datasheet [42 KB]  

Benzyltrimethylammonium Hydroxide

10%, Propylene Glycol Solution (Envure™ 814) CAS# 100-85-6
M/SDS  |  Datasheet [41 KB]  

Dimethyldiethylammonium Hydroxide

20%, Aqueous (DEDMOH 20% Aq) CAS# 95500-19-9
M/SDS  |  Datasheet [36 KB]  

Tetrabutylammonium Hydroxide

55%, Aqueous, Ultra Pure (TBAH 55% Aq UP) CAS# 2052-49-5
M/SDS  |  Datasheet [38 KB]  

Tetrabutylammonium Hydroxide

40%, Aqueous (TBAH 40% Aq) CAS# 2052-49-5
M/SDS  |  Datasheet [38 KB]  

Tetrabutylammonium Hydroxide

55%, Aqueous (TBAH 55% Aq) CAS# 2052-49-5
M/SDS  |  SDS [14 KB]  |  Datasheet [38 KB]  

Tetrabutylammonium Hydroxide

55%, Aqueous, Envure™ (Envure™-855) CAS# 2052-49-5
M/SDS  |  Datasheet [38 KB]  

Tetrabutylammonium Hydroxide

10%, Propylene Glycol Solution (Envure™ 857) CAS# 2052-49-5
M/SDS  |  Datasheet [40 KB]  

Tetrabutylammonium Hydroxide

40%, MeOH (TBAH 40M) CAS# 2052-49-5/67-56-1
M/SDS  |  Datasheet [37 KB]  

Tetrabutylammonium Hydroxide (1.0 M)

31%, MeOH (TBAH 1.0M MeOH) CAS# 2052-49-5/67-56-1
M/SDS  |  Datasheet [41 KB]  

Tetraethylammonium Hydroxide

20%, Aqueous (TEAH 20% Aq) CAS# 77-98-5

Tetraethylammonium Hydroxide

35%, Aqueous (TEAH 35% Technical) CAS# 77-98-5
M/SDS  |  SDS  |  Datasheet [38 KB]  

Tetraethylammonium Hydroxide

20%, Aqueous, Envure™ (Envure™-643) CAS# 77-98-5
M/SDS  |  Datasheet [39 KB]  

Tetraethylammonium Hydroxide

10%, Propylene Glycol Solution (Envure™ 838) CAS# 77-98-5
M/SDS  |  Datasheet [40 KB]  

Tetramethylammonium Chloride

98%, (TMAC 98%) CAS# 75-57-0
M/SDS  |  SDS [11 KB]  |  Datasheet [55 KB]  

Tetramethylammonium Hydroxide

25%, Aqueous, Ultra Pure (TMAH 25% UP) CAS# 75-59-2
M/SDS  |  SDS  |  Datasheet [39 KB]  

Tetramethylammonium Hydroxide

15%, Propylene Glycol (TMAH 15% PG) CAS# 75-59-2

Tetramethylammonium Hydroxide

7%, Propylene Glycol Solution (TMAH 7% PG) CAS# 75-59-2 / 57-55-6
M/SDS  |  Datasheet [42 KB]  

Tetramethylammonium Hydroxide

20%, Aqueous, Ultra Pure (TMAH 20% Aq UP) CAS# 75-59-2
M/SDS  |  Datasheet [42 KB]  

Tetramethylammonium Hydroxide

25%, MeOH (TMAH 25M) CAS# 75-59-2/67-56-1
M/SDS  |  Datasheet [37 KB]  

Tetramethylammonium Hydroxide

25%, Aqueous (TMAH 25% Technical) CAS# 75-59-2
M/SDS  |  Datasheet [36 KB]  

Tetramethylammonium Hydroxide Pentahydrate

98%, Pentahydrate (TMAH Penta) CAS# 10424-65-4 / 75-59-2
M/SDS  |  SDS  |  Datasheet [40 KB]  

Tetrapropylammonium Hydroxide

40%, Aqueous, Technical Grade (TPAH 40% Aq Tech) CAS# 4499-86-9
M/SDS  |  SDS [14 KB]  |  Datasheet [37 KB]  

Tetrapropylammonium Hydroxide

40%, Aqueous, Low Sodium (TPAH 40% Aq Low Na) CAS# 4499-86-9
M/SDS  |  Datasheet [37 KB]  

Tetrapropylammonium Hydroxide

40%, Aqueous, Envure™ (Envure™-846) CAS# 4499-86-9
M/SDS  |  Datasheet [35 KB]  

Tetrapropylammonium Hydroxide

10%, Propylene Glycol Solution (Envure™ 847) CAS# 4499-86-9
M/SDS  |  Datasheet [40 KB]