An evaluation of the Diamat HPLC analyser for simultaneous determination of haemoglobins A2 and F

Andrea Mosca, Assunta Carpinelli, Rita Majavacca, Angelo Cantu’-Rajnoldi, Massimo Garatti, Renata Paleari, Maurizio Ferrari, Vittorio Agape, Liliana Maccioni, Sandra Pisano, Renzo Galanello

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Abstract

The authors describe a modification of the instrumental parameters of the Diamat fully automated HPLC system for Hb A2 assay (Bio-Rad Laboratories, Milan, Italy) in order to obtain simultaneous determination of Hb A2 and Hb F. Hb A2 and Hb F measurements are reproducible (within-run CV 2.6%, with Hb A22.7%; 5.1%, with Hb F1.3%) and accurate (from a comparison with two microchrornato graphic techniques for Hb A2: r = 0.9639 and 0.9755; with two alkali denaturation procedures for Hb F: r = 0.9990 and 0.9952; with radial immunodiffusion, r = 0.9877). Assay linearity has been confirmed for Hb A2 concentrations between 0 and 6-0%, and for Hb F between 0 and 60%. The data obtained from the analysis of some pathological samples for Hb Bart’s, Hb H, Hb J Sardegna, Hb Lepore and Hb S are in agreement with cellulose acetate electrophoresis analysis. The Hb A2 reference intervals for normals (N = 597) and Вeta-thalassemia carriers (N = 200) are respectively (95% limits) 2-02-3.27 and 3-92-5-90 in % units. Hb F values measured in normals (N = 968), in β-thal carriers (N = 302) and in δβ-thal carriers (N = 3) have been found to be consistent with the usual diagnostic parameters. Some minor limitations emerged: the most relevant concerns Hb A1c, which is overestimated with respect to a reference method (y = 1.217x + 0.16; N = 79; r = 0.9235). A probable interference from labile fractions is responsible for this Hb A1c inaccuracy.

Original languageEnglish
Pages (from-to)273-279
Number of pages7
JournalJournal of Automatic Chemistry
Volume11
Issue number6
DOIs
Publication statusPublished - 1989

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Hemoglobin A2
Fetal Hemoglobin
High Pressure Liquid Chromatography
Glycosylated Hemoglobin A
Assays
Cellulose Acetate Electrophoresis
Denaturation
Thalassemia
Immunodiffusion
Alkalies
Electrophoresis
Italy
hemoglobin A2'

ASJC Scopus subject areas

  • Clinical Biochemistry

Cite this

Mosca, A., Carpinelli, A., Majavacca, R., Cantu’-Rajnoldi, A., Garatti, M., Paleari, R., ... Galanello, R. (1989). An evaluation of the Diamat HPLC analyser for simultaneous determination of haemoglobins A2 and F. Journal of Automatic Chemistry, 11(6), 273-279. https://doi.org/10.1155/S1463924689000520

An evaluation of the Diamat HPLC analyser for simultaneous determination of haemoglobins A2 and F. / Mosca, Andrea; Carpinelli, Assunta; Majavacca, Rita; Cantu’-Rajnoldi, Angelo; Garatti, Massimo; Paleari, Renata; Ferrari, Maurizio; Agape, Vittorio; Maccioni, Liliana; Pisano, Sandra; Galanello, Renzo.

In: Journal of Automatic Chemistry, Vol. 11, No. 6, 1989, p. 273-279.

Research output: Contribution to journalArticle

Mosca, A, Carpinelli, A, Majavacca, R, Cantu’-Rajnoldi, A, Garatti, M, Paleari, R, Ferrari, M, Agape, V, Maccioni, L, Pisano, S & Galanello, R 1989, 'An evaluation of the Diamat HPLC analyser for simultaneous determination of haemoglobins A2 and F', Journal of Automatic Chemistry, vol. 11, no. 6, pp. 273-279. https://doi.org/10.1155/S1463924689000520
Mosca, Andrea ; Carpinelli, Assunta ; Majavacca, Rita ; Cantu’-Rajnoldi, Angelo ; Garatti, Massimo ; Paleari, Renata ; Ferrari, Maurizio ; Agape, Vittorio ; Maccioni, Liliana ; Pisano, Sandra ; Galanello, Renzo. / An evaluation of the Diamat HPLC analyser for simultaneous determination of haemoglobins A2 and F. In: Journal of Automatic Chemistry. 1989 ; Vol. 11, No. 6. pp. 273-279.
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abstract = "The authors describe a modification of the instrumental parameters of the Diamat fully automated HPLC system for Hb A2 assay (Bio-Rad Laboratories, Milan, Italy) in order to obtain simultaneous determination of Hb A2 and Hb F. Hb A2 and Hb F measurements are reproducible (within-run CV 2.6{\%}, with Hb A22.7{\%}; 5.1{\%}, with Hb F1.3{\%}) and accurate (from a comparison with two microchrornato graphic techniques for Hb A2: r = 0.9639 and 0.9755; with two alkali denaturation procedures for Hb F: r = 0.9990 and 0.9952; with radial immunodiffusion, r = 0.9877). Assay linearity has been confirmed for Hb A2 concentrations between 0 and 6-0{\%}, and for Hb F between 0 and 60{\%}. The data obtained from the analysis of some pathological samples for Hb Bart’s, Hb H, Hb J Sardegna, Hb Lepore and Hb S are in agreement with cellulose acetate electrophoresis analysis. The Hb A2 reference intervals for normals (N = 597) and Вeta-thalassemia carriers (N = 200) are respectively (95{\%} limits) 2-02-3.27 and 3-92-5-90 in {\%} units. Hb F values measured in normals (N = 968), in β-thal carriers (N = 302) and in δβ-thal carriers (N = 3) have been found to be consistent with the usual diagnostic parameters. Some minor limitations emerged: the most relevant concerns Hb A1c, which is overestimated with respect to a reference method (y = 1.217x + 0.16; N = 79; r = 0.9235). A probable interference from labile fractions is responsible for this Hb A1c inaccuracy.",
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AU - Mosca, Andrea

AU - Carpinelli, Assunta

AU - Majavacca, Rita

AU - Cantu’-Rajnoldi, Angelo

AU - Garatti, Massimo

AU - Paleari, Renata

AU - Ferrari, Maurizio

AU - Agape, Vittorio

AU - Maccioni, Liliana

AU - Pisano, Sandra

AU - Galanello, Renzo

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N2 - The authors describe a modification of the instrumental parameters of the Diamat fully automated HPLC system for Hb A2 assay (Bio-Rad Laboratories, Milan, Italy) in order to obtain simultaneous determination of Hb A2 and Hb F. Hb A2 and Hb F measurements are reproducible (within-run CV 2.6%, with Hb A22.7%; 5.1%, with Hb F1.3%) and accurate (from a comparison with two microchrornato graphic techniques for Hb A2: r = 0.9639 and 0.9755; with two alkali denaturation procedures for Hb F: r = 0.9990 and 0.9952; with radial immunodiffusion, r = 0.9877). Assay linearity has been confirmed for Hb A2 concentrations between 0 and 6-0%, and for Hb F between 0 and 60%. The data obtained from the analysis of some pathological samples for Hb Bart’s, Hb H, Hb J Sardegna, Hb Lepore and Hb S are in agreement with cellulose acetate electrophoresis analysis. The Hb A2 reference intervals for normals (N = 597) and Вeta-thalassemia carriers (N = 200) are respectively (95% limits) 2-02-3.27 and 3-92-5-90 in % units. Hb F values measured in normals (N = 968), in β-thal carriers (N = 302) and in δβ-thal carriers (N = 3) have been found to be consistent with the usual diagnostic parameters. Some minor limitations emerged: the most relevant concerns Hb A1c, which is overestimated with respect to a reference method (y = 1.217x + 0.16; N = 79; r = 0.9235). A probable interference from labile fractions is responsible for this Hb A1c inaccuracy.

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