1
|
Cramer JA, Hammond MH, Loegel TN, Morris RE. Evolving window factor analysis-multivariate curve resolution with automated library matching for enhanced peak deconvolution in gas chromatography-mass spectrometry fuel data. J Chromatogr A 2018; 1581-1582:125-134. [DOI: 10.1016/j.chroma.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/01/2018] [Accepted: 11/01/2018] [Indexed: 10/27/2022]
|
2
|
Bianchini RM, Kaufman TS. A Multivariate Curve Resolution Approach to the Study of the Degradation Kinetics of Valsartan under Photolytic and Acid Conditions. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Romina M. Bianchini
- Pharmaceutical Analysis, School of Biochemical and Pharmaceutical Sciences; National University of Rosario and Institute of Chemistry of Rosario; Rosario; S2002LRK; Argentina
| | - Teodoro S. Kaufman
- Pharmaceutical Analysis, School of Biochemical and Pharmaceutical Sciences; National University of Rosario and Institute of Chemistry of Rosario; Rosario; S2002LRK; Argentina
| |
Collapse
|
3
|
Wu N, Sun KL, Liu Y, Yang XF, Li H. Multivariate curve resolution combined with on-line infrared spectroscopy for researching the synthesis mechanism of 3,4-bis(4′-aminofurazano-3′)furoxan. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-3043-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
4
|
Amigo JM, Skov T, Bro R. ChroMATHography: Solving Chromatographic Issues with Mathematical Models and Intuitive Graphics. Chem Rev 2010; 110:4582-605. [DOI: 10.1021/cr900394n] [Citation(s) in RCA: 160] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José Manuel Amigo
- Department of Food Science, Quality and Technology, Faculty of Life Sciences, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Thomas Skov
- Department of Food Science, Quality and Technology, Faculty of Life Sciences, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Rasmus Bro
- Department of Food Science, Quality and Technology, Faculty of Life Sciences, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| |
Collapse
|
5
|
Zhang F, Chen Y, Li H. Application of Multivariate curve resolution-alternating least square methods on the resolution of overlapping CE peaks from different separation conditions. Electrophoresis 2007; 28:3674-83. [DOI: 10.1002/elps.200600372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
6
|
de Juan A, Tauler R. Factor analysis of hyphenated chromatographic data. J Chromatogr A 2007; 1158:184-95. [PMID: 17543980 DOI: 10.1016/j.chroma.2007.05.045] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Revised: 05/08/2007] [Accepted: 05/09/2007] [Indexed: 10/23/2022]
Abstract
Factor analysis (FA) is a family of widely used methods to obtain the underlying sources of variation of data tables. Typically, hyphenated chromatographic data provide data tables with one elution direction and another linked to the detector response. In this context, the factors are the eluting compounds and the profiles defining each factor are the elution profile and the pure response of the compound. This article describes the use of FA in chromatography through diverse tools and problems. Examples of determination of number of compounds, peak purity problems, resolution of overlapped compounds or extension to simultaneous analysis of multiple runs (higher-order data structures) to obtain qualitative and quantitative information are reviewed.
Collapse
Affiliation(s)
- Anna de Juan
- Chemometrics Group, Department of Analytical Chemistry, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain.
| | | |
Collapse
|
7
|
Zhang F, Li H. Resolution of overlapping capillary electrophoresis peaks by using chemometric analysis: Quantification of the components in compound reserpine tablets. Electrophoresis 2005; 26:1692-702. [PMID: 15812851 DOI: 10.1002/elps.200410079] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The application of multivariate curve resolution with alternating least squares (MCR-ALS) methods to second-order data from capillary electrophoresis with diode array detector (CE-DAD) is reported. Initial qualitative solutions obtained by evolving factor analysis (EFA) and pure-variable detection method can be further optimized by a simultaneous analysis of multiple electrophoresis run data with ALS regression. While unknown samples are analyzed simultaneously against the corresponding standards in different composition ratios, the exact amounts of common components in different CE runs can be determined by the traditional calibration curve method, and quantification can thus be achieved. The above methods are applied to the determination of the components in compound reserpine tablets in overlapping peaks from CE. The quantification results are compared with those of the first derivative of the electropherogram method and artificial neural network (ANN) method.
Collapse
Affiliation(s)
- Fang Zhang
- Institute of Analytical Science, Northwest University, Xi'an 710 069, China
| | | |
Collapse
|
8
|
Latorre RM, Saurina J, Hernández-Cassou S. Resolution of overlapped peaks of amino acid derivatives in capillary electrophoresis using multivariate curve resolution based on alternating least squares. Electrophoresis 2000; 21:563-72. [PMID: 10726761 DOI: 10.1002/(sici)1522-2683(20000201)21:3<563::aid-elps563>3.0.co;2-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The application of chemometric techniques to the resolution of overlapped peaks in capillary electrophoresis (CE) is described. When a physical separation can not be completely accomplished, chemometrics might still resolve the determination of the analytes mathematically. CE with diode array detection can provide a large amount of data consisting of spectra registered over time. In this study, the capillary electrophoretic separation of 1,2-naphthoquinone-4-sulfonate derivatives of amino acids is studied. Most of the common amino acid derivatives can be separated at 30 kV in a fused-silica capillary by using a 40 mM sodium tetraborate + isopropanol (3:1 v/v) solution as background electrolyte. However, peaks of certain derivatives (Phe, His, Leu and Ile) still overlap. A multivariate curve resolution method based on an alternating least squares optimization procedure is used for the resolution of the overlapped electrophoretic peaks. The method takes advantage of spectral and electrophoretic differences of analytes to recover their pure electrophoretic and spectral profiles. In addition, each analyte in the mixture can be quantified using the corresponding standards.
Collapse
Affiliation(s)
- R M Latorre
- Department of Analytical Chemistry, University of Barcelona, Spain
| | | | | |
Collapse
|
9
|
Chapter 16 Interpretation of environmental data using chemometrics. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0167-9244(00)80022-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
10
|
Salau J, Honing M, Tauler R, Barceló D. Resolution and quantitative determination of coeluted pesticide mixtures in liquid chromatography–thermospray mass spectrometry by multivariate curve resolution. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(97)01118-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Cuesta Sánchez F, Vandeginste BGM, Hancewicz TM, Massart DL. Resolution of Complex Liquid Chromatography−Fourier Transform Infrared Spectroscopy Data. Anal Chem 1997. [DOI: 10.1021/ac9610366] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Cuesta Sánchez
- ChemoAC, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium, Unilever Research Laboratorium Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands, and Unilever Research US, 45 River Road, Edgewater, New Jersey 07020
| | - B. G. M. Vandeginste
- ChemoAC, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium, Unilever Research Laboratorium Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands, and Unilever Research US, 45 River Road, Edgewater, New Jersey 07020
| | - T. M. Hancewicz
- ChemoAC, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium, Unilever Research Laboratorium Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands, and Unilever Research US, 45 River Road, Edgewater, New Jersey 07020
| | - D. L. Massart
- ChemoAC, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium, Unilever Research Laboratorium Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands, and Unilever Research US, 45 River Road, Edgewater, New Jersey 07020
| |
Collapse
|
12
|
Gilliard J, Ritter C. Simulations of liquid chromatography-diode array detector data including instrumental artefacts for the evaluation of mixture analysis techniques. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(96)00676-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
13
|
Tauler R, Lacorte S, Barceló D. Application of multivariate self-modeling curve resolution to the quantitation of trace levels of organophosphorus pesticides in natural waters from interlaboratory studies. J Chromatogr A 1996. [DOI: 10.1016/0021-9673(95)01206-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
14
|
Wentzell PD, Hughes SG, Vanslyke SJ. Parallel Kalman filters for peak purity analysis: extensions to non-ideal detector response. Anal Chim Acta 1995. [DOI: 10.1016/0003-2670(95)00076-c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
15
|
Lacorte S, Barcelo´ D, Tauler R. Determination of traces of herbicide mixtures in water by on-line solid-phase extraction followed by liquid chromatography with diode-array detection and multivariate self-modelling curve resolution. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(94)00957-b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
16
|
Cuesta Sánchez F, Khots M, Massart D. Algorithms for the assessment of peak purity in liquid chromatography with photodiode-array detection. Part II. Anal Chim Acta 1994. [DOI: 10.1016/0003-2670(94)80111-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Algorithm for the assessment of peak purity in liquid chromatography with photodiode-array detection. Anal Chim Acta 1994. [DOI: 10.1016/0003-2670(94)85022-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
18
|
|