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1

High performance liquid chromatographic evaluation of artemisinin, raw material in the synthesis of artesunate and artemether

Rodger W. Stringham, Kenneth G. Lynam, Peter Mrozinski, Greg Kilby, István Pelczer, Christina Kraml

Journal:

Journal of Chromatography A

Year:

2009

Language:

english

File:

PDF, 972 KB

english, 2009

2

Selective non-adsorption preparative chromatography of bovine immunoglobulin G1

Rodger W. Stringham, Fred E. Regnier

Journal:

Journal of Chromatography A

Year:

1987

Language:

english

File:

PDF, 344 KB

english, 1987

3

Memory effect of diethylamine mobile phase additive on chiral separations on polysaccharide stationary phases

Rodger W. Stringham, Kenneth G. Lynam, Barbara S. Lord

Journal:

Year:

2004

Language:

english

File:

PDF, 365 KB

english, 2004

4

Use of elevated flow rates in preparative subcritical fluid chromatography

Rodger W. Stringham, Brian R. Krueger, Jonathan Marshall

Journal:

Journal of Chromatography A

Year:

2007

Language:

english

File:

PDF, 695 KB

english, 2007

5

Use of Post-Column Derivatization in Liquid Chromatographic Determination of Sulfamethazine and Sulfathiazole in Feeds and Feed Premixes

Stringham, Rodger W, Mundell, Elizabeth C, Smallidge, Robert L

Journal:

Journal of AOAC International

Year:

1982

File:

PDF, 407 KB

1982

6

Evaluation of the specific intermolecular interactions responsible for chiral selectivity for phenylalanine analogs in subcritical fluid chromatography

John A. Blackwell, Rodger W. Stringham

Journal:

Year:

1999

Language:

english

File:

PDF, 79 KB

english, 1999

7

Temperature effects for chiral separations using various bulk fluids in near-critical mobile phases

John A. Blackwell, Rodger W. Stringham

Journal:

Year:

1997

Language:

english

File:

PDF, 91 KB

english, 1997

8

Empirical relationship between chiral selectivity and mobile phase modifier properties

John A. Blackwell, Rodger W. Stringham, Dong Xiang, Robert E. Waltermire

Journal:

Journal of Chromatography A

Year:

1999

Language:

english

File:

PDF, 131 KB

english, 1999

9

Analysis and Isolation of Potential Artemisinin Precursors from Waste Streams of Artemisia Annua Extraction

Stringham, Rodger W., Moore, Gary L., Teager, David S., Yue, Tai-Yuen

Journal:

Year:

2018

Language:

english

File:

PDF, 1.22 MB

english, 2018

10

Capillary Gas Chromatographic Determination of Pyrethrins in Low Level Formulations

Stringham, Rodger W, Schulz, Ray P

Journal:

Journal of AOAC International

Year:

1985

File:

PDF, 502 KB

1985

11

Liquid Chromatographic Determination of Benomyl in Wettable Powders: Collaborative Study

Teubert, Wyatt E, Stringham, Rodger W, Bradway, D E, Deubert, K H, Folsom, B, Hayes, E H, Jaworski, J, Jurgens, D, Korger, P D, Pilz-Weiskopf, C, Plunkett, R W, Stroh, S

Journal:

Journal of AOAC International

Year:

1984

File:

PDF, 290 KB

1984

12

Enantioseparation of amino acids on a polysaccharide-based chiral stationary phase

Yun K Ye, Barbara S Lord, Li Yin, Rodger W Stringham

Journal:

Journal of Chromatography A

Year:

2002

Language:

english

File:

PDF, 864 KB

english, 2002

13

Factors That Control Successful Entropically Driven Chiral Separations in SFC and HPLC

Stringham, Rodger W., Blackwell, John A.

Journal:

Analytical Chemistry

Year:

1997

Language:

english

File:

PDF, 218 KB

english, 1997

14

Effect of Mobile Phase Components on the Separation of Polypeptides Using Carbon Dioxide-Based Mobile Phases

John A. Blackwell, Rodger W. Stringham

Journal:

Journal of Separation Science

Year:

1999

Language:

english

File:

PDF, 81 KB

english, 1999

15

Memory effect of mobile phase additives in chiral separations on a Chiralpak AD column

Yun K Ye, Barbara Lord, Rodger W Stringham

Journal:

Journal of Chromatography A

Year:

2002

Language:

english

File:

PDF, 210 KB

english, 2002

16

Effect of Various Modifiers on Selectivity in Packed-Column Subcritical and Supercritical Fluid Chromatography

Cantrell, Gary O., Stringham, Rodger W., Blackwell, John A., Weckwerth, Jeff D., Carr, Peter W.

Journal:

Analytical Chemistry

Year:

1996

Language:

english

File:

PDF, 193 KB

english, 1996

17

Liquid Chromatographic Determination of Organic Acids Used as Pharmaceutical Counterions

Lord, Barbara S., Stringham, Rodger W.

Journal:

Analytical Chemistry

Year:

1996

Language:

english

File:

PDF, 137 KB

english, 1996

18

“Entropically Driven” Chiral Separations in Supercritical Fluid Chromatography. Confirmation of Isoelution Temperature and Reversal of Elution Order

Stringham, Rodger W., Blackwell, John A.

Journal:

Analytical Chemistry

Year:

1996

Language:

english

File:

PDF, 197 KB

english, 1996

19

Effect of mobile phase amine additives on enantioselectivity for phenylalanine analogs

Yun K Ye, Rodger Stringham

Journal:

Journal of Chromatography A

Year:

2001

Language:

english

File:

PDF, 271 KB

english, 2001

20

Effect of mobile phase acidic additives on enantioselectivity for phenylalanine analogs

Yun K Ye, Rodger W Stringham

Journal:

Journal of Chromatography A

Year:

2001

Language:

english

File:

PDF, 153 KB

english, 2001

21

Streamlined Process for the Conversion of Artemisinin to Artemether

Stringham, Rodger W., Teager, David S.

Journal:

Organic Process Research & Development

Year:

2012

Language:

english

File:

PDF, 254 KB

english, 2012

22

Origin of enhanced chiral selectivity by acidic additives for a polysaccharide-based stationary phase

Yun K. Ye, Rodger W. Stringham, Mary J. Wirth

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 322 KB

english, 2004

23

Practical Synthesis of the Bicyclic Darunavir Side Chain: (3 R ,3a S ,6a R )-Hexahydrofuro[2,3- b ]furan-3-ol from Monopotassium Isocitrate

Moore, Gary L., Stringham, Rodger W., Teager, David S., Yue, Tai-Yuen

Journal:

Organic Process Research & Development

Year:

2017

Language:

english

File:

PDF, 382 KB

english, 2017

24

High Performance Liquid Chromatographic Determination of Furazolidone in Feed and Feed Premixes

Smallidge, Robert L, Rowe, Norman W, Wadgaonkar, Nandan D, Stringham, Rodger W

Journal:

Journal of AOAC International

Year:

1981

File:

PDF, 521 KB

1981

25

Capillary Gas Chromatographic Determination of Technical Chlordane in Emulsifiable Concentrates and Aqueous Dilutions

Stringham, Rodger W, Schulz, Ray P

Journal:

Journal of AOAC International

Year:

1985

File:

PDF, 332 KB

1985

26

Characterization of 1,1,1,2-Tetrafluoroethane and Carbon Dioxide Binary Mobile Phases with Polymeric Columns Using Linear Solvation Energy Relationships

Blackwell, John A., Stringham, Rodger W.

Journal:

Analytical Chemistry

Year:

1997

Language:

english

File:

PDF, 141 KB

english, 1997

27

Relationship between resolution and analysis time in chiral subcritical fluid chromatography

Rodger W. Stringham

Journal:

Year:

1996

Language:

english

File:

PDF, 511 KB

english, 1996

28

Application of Subcritical Fluid Chromatography to Rapid Chiral Method Development

Stringham, Rodger W., Lynam, Kenneth G., Grasso, Concetta C.

Journal:

Analytical Chemistry

Year:

1994

Language:

english

File:

PDF, 430 KB

english, 1994

29

Flame Photometric Determination of K2O in Fertilizers: Collaborative Study

Kane, Peter F, Stringham, Rodger W, Coggin, D, Grigor, S, Holmes, J H, Johnson, F J, Kirk, L A, Lee, C, Lehe, C M, Neuman, J F, Proska, P, Ptak, F L, Shideler, R, Wall, L L, Wheeler, W L, Woodis, T C

Journal:

Journal of AOAC International

Year:

1983

File:

PDF, 901 KB

1983

30

Effect of Mobile Phase Additives in Packed-Column Subcritical and Supercritical Fluid Chromatography

Blackwell, John A., Stringham, Rodger W., Weckwerth, Jeff D.

Journal:

Analytical Chemistry

Year:

1997

Language:

english

File:

PDF, 267 KB

english, 1997

31

Correction to A Streamlined Process for the Conversion of Artemisinin to Artemether

Stringham, Rodger W., Teager, David S.

Journal:

Organic Process Research & Development

Year:

2012

File:

PDF, 108 KB

2012

32

An Economical Route to Lamivudine Featuring a Novel Strategy for Stereospecific Assembly

Snead, David R., McQuade, D. Tyler, Ahmad, Saeed, Krack, Rudy, Stringham, Rodger W., Burns, Justina M., Abdiaj, Irini, Gopalsamuthiram, Vijayagopal, Nelson, Ryan C., Gupton, B. Frank

Journal:

Organic Process Research & Development

Year:

2020

File:

PDF, 374 KB

2020

33

Synthesis of an Oxathiolane Drug Substance Intermediate Guided by Constraint Driven Innovation

Kashinath, K., Snead, David, Burns, Justina M., Stringham, Rodger W., Gupton, B. Frank, McQuade, D. Tyler

Journal:

Organic Process Research & Development

Year:

2020

File:

PDF, 263 KB

2020

34

Effect of amine mobile phase additives on chiral subcritical fluid chromatography using polysaccharide stationary phases

Yun K Ye, Kenneth G Lynam, Rodger W Stringham

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 129 KB

english, 2004

35

Monitoring Formation of a Diamine Process Intermediate by Reversed-Phase Liquid Chromatography

Lord, Barbara S., Stringham, Rodger W.

Journal:

Analytical Chemistry

Year:

1994

Language:

english

File:

PDF, 433 KB

english, 1994

36

Expanding Access to Remdesivir via an Improved Pyrrolotriazine Synthesis: Supply Centered Synthesis

Paymode, Dinesh J., Cardoso, Flavio S. P., Agrawal, Toolika, Tomlin, John W., Cook, Daniel W., Burns, Justina M., Stringham, Rodger W., Sieber, Joshua D., Gupton, B. Frank, Snead, David R.

Journal:

Organic Letters

Year:

2020

File:

PDF, 1.74 MB

2020

37

The effect of acidic and basic additives on the enantioseparation of basic drugs using polysaccharide-based chiral stationary phases

Yun K. Ye, Rodger W. Stringham

Journal:

Year:

2006

Language:

english

File:

PDF, 245 KB

english, 2006

38

Liquid Chromatographic Determination of Cholecalciferol m Rodent Baits

Gehrig, Connie C, Stringham, Rodger W

Journal:

Journal of AOAC International

Year:

1987

File:

PDF, 197 KB

1987

39

Chiral separation of amines by high-performance liquid chromatography using polysaccharide stationary phases and acidic additives

Rodger W. Stringham, Yun K. Ye

Journal:

Journal of Chromatography A

Year:

2006

Language:

english

File:

PDF, 268 KB

english, 2006

40

Identification of impurities in artemisinin, their behavior in high performance liquid chromatography and implications for the quality of derived anti-malarial drugs

Rodger W. Stringham, Michael Pennell, Walter Cabri, Giulio Carzana, Fabrizio Giorgi, Silvana Lalli, Giuseppe Marazzi, Marco Torri

Journal:

Journal of Chromatography A

Year:

2011

Language:

english

File:

PDF, 704 KB

english, 2011

41

Chiral separations on polysaccharide stationary phases using polar organic mobile phases

Kenneth G. Lynam, Rodger W. Stringham

Journal:

Year:

2006

Language:

english

File:

PDF, 119 KB

english, 2006

42

Comparision of varuious bulk fluids and modifiers as near-crtical mobile phases on a polymeric column using linear solvatio energy realationships

John A. Blackwell, Rodger W. Stringham

Journal:

Journal of Separation Science

Year:

1997

Language:

english

File:

PDF, 699 KB

english, 1997

43

Sulfamethazine and Sulfathiazole Determination at Residue Levels in Swine Feeds by Reverse-Phase Liquid Chromatography with Post-Column Derivatization

Smallidge, Robert L, Kentzer, Elzbieta J, Stringham, Kelly R, Kim, Eun H, Lehe, Connie, Stringham, Rodger W, Mundell, Elizabeth C

Journal:

Journal of AOAC International

Year:

1988

File:

PDF, 1.27 MB

1988

44

Chiral separation of amines in subcritical fluid chromatography using polysaccharide stationary phases and acidic additives

Rodger W. Stringham

Journal:

Journal of Chromatography A

Year:

2005

Language:

english

File:

PDF, 475 KB

english, 2005

45

Liquid Chromatographic Determination of Benomyl in Wettable Powders

Stringham, Rodger W, Teubert, Wyatt E

Journal:

Journal of AOAC International

Year:

1984

File:

PDF, 262 KB

1984

46

Influence of mobile phase composition on methylene group selectivity and homologous compound retention in near-critical mobile phases

John A Blackwell, Rodger W Stringham

Journal:

Journal of Chromatography A

Year:

1998

Language:

english

File:

PDF, 255 KB

english, 1998

47

High Performance Liquid Chromatographic Determination of Dielofop-Methyl

Stringham, Rodger W, Bennett, Brian R

Journal:

Journal of AOAC International

Year:

1983

File:

PDF, 232 KB

1983

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