| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Clinical Chemistry, Vol 29, 519-522, Copyright © 1983 by American Association for Clinical Chemistry
M D'Costa and PT Cheng
We evaluated the Amicon micropartition system (MPS-1) for preparing ultrafiltrates of serum for use in evaluating ultrafiltrable Ca and Mg. We found no adsorption of either to the filter and 99.6% retention of serum proteins on the membrane. Ultrafiltrate volumes recovered (100- 450 microL) varied with centrifugation time (10-30 min) and temperature. Centrifugation time did not affect the measured concentration of ultrafiltrable calcium and magnesium, and pH change in the 1-mL serum specimen during a 30-min centrifugation at room temperature was negligible. There was an inverse relationship between temperature and ultrafiltrable Ca and Mg concentrations. The precision (CV) between filters ranged from 1.2 to 5.1% for ultrafiltrable Ca and 1.5 to 2.7% for ultrafiltrable Mg. The correlation between ultrafiltrable Ca (y) and ionized Ca (x) in samples from 115 patients with calcium-related metabolic disorders was good (y = 1.04x + 0.18; r = 0.9128). We find the MPS-1 to be a simple and convenient tool for the rapid production of serum ultrafiltrates.
The following articles in journals at HighWire Press have cited this article:
|
|
 |
|
  L. M Klevay and D. B Milne Low dietary magnesium increases supraventricular ectopy Am. J. Clinical Nutrition, March 1, 2002; 75(3): 550 - 554. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. B. Milne and F. H. Nielsen The Interaction Between Dietary Fructose and Magnesium Adversely Affects Macromineral Homeostasis in Men J. Am. Coll. Nutr., February 1, 2000; 19(1): 31 - 37. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Cochran, B. Rumbelow, and G. Allen The Relation between the Ultrafiltrable Calcium Fraction and Blood pH and Concentrations of Total Plasma Calcium, Albumin, and Globulin Clin. Chem., July 1, 1998; 44(7): 1559 - 1562. [Full Text] [PDF]
|
|
|
|
 |
|
 W. Storm and J. J. Zimmerman Magnesium Deficiency and Cardiogenic Shock After Cardiopulmonary Bypass Ann. Thorac. Surg., August 1, 1997; 64(2): 572 - 577. [Abstract] [Full Text]
|
|
|
|
 |
|
 M. R. England, G. Gordon, M. Salem, and B. Chernow Magnesium Administration and Dysrhythmias After Cardiac Surgery: A Placebo-Controlled, Double-blind, Randomized Trial JAMA, November 4, 1992; 268(17): 2395 - 2402. [Abstract] [PDF]
|
|
|
|
 |
|
 M. Salem, N. Kasinski, A. M. Andrei, T. Brussel, M. R. Gold, A. Conn, and B. Chernow Hypomagnesemia Is a Frequent Finding in the Emergency Department in Patients With Chest Pain Arch Intern Med, November 1, 1991; 151(11): 2185 - 2190. [Abstract] [PDF]
|
|
|
|
 |
|
 M. L. McPHERSON, S. P. PRINCE, E. P. ATAMER, D. B. MAXWELL, H. ROSS-CLUNIS, and H. L. ESTEP Theophylline-Induced Hypercalcemia Ann Intern Med, July 1, 1986; 105(1): 52 - 54. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
