LSA machines have their indexing axis in the horizontal plane (drawings), while Diamat
machines have their indexing axis in the vertical plane.
At the University of Minnesota (Minneapolis, MN), a Diamat
HPLC dedicated ion-exchange system was used from November 1986 until April 2002 (1).
Methods are given in parentheses: Diabetes Diagnostic Laboratory, University of Missouri School of Medicine, Columbia, MO (Bio-Rad Diamat
HPLC; Tosoh 2.
1c] was analyzed on a Diamat
HPLC (Bio-Rad Laboratories) calibrated to give values similar to the Diabetes Control and Complications Trial method (28).
All samples were analyzed for GHB with the following methods: Primus CLC330 HPLC (Primus Corporation), Diamat
and Variant HPLC (Bio-Rad Laboratories), 2.
Three laboratories used Bio-Rad Variant HPLCs (NGSP-certified), and two used Pharmacia Mono S column HPLC systems (13) traceable to the Bio-Rad Diamat
Interestingly, both studies used the same ion-exchange method (Bio-Rad Diamat
1c], is measured on a Diamat
HPLC (Bio-Rad Laboratories), and the values obtained are traceable to the "DCCT method".
4) comparatively evaluated five glycated Hb assay methods, including the Abbott IMx glycated Hb ion capture assay, they found that the methods showed generally acceptable precision and good accordance with the Bio-Rad Diamat
2+ and the Bio-Rad Variant, Diamat
, and Diastat systems.
and CLC 330 HPLC analyses were performed in NGSP Network Laboratories.
HbA1c values (%) in blood from 34 presumed diabetic patients were generated using the Variant Express and compared with values from the Bio-Rad MDMS HPLC system with the Diamat
reagents and assay program.
In France, a Bio-Rad Diamat
HbA1c analyzer (Bio-Rad Laboratories) was operated according to the manufacturer's instructions.
Samples with hemoglobin variants were identified by comparison of retention times on the Diamat
system (Bio-Rad Clinical Laboratories) to known retention times for Hb S and Hb C.
of uremic Method laboratories patient (A) HPLC ion-exchange chromatography (a) Bio-Rad; Diamat