Reference liquid

Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Inorganic standards or controls

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Other Related Categories

23908, 2524081, 436 16, G01N 2756, C09K 300, G01N 3348, G01N 2746, G01N 2750

Type

Patent

Status

active

Patent number

043636330

Description

ABSTRACT:
A reference liquid for calibration or quality control of instruments which determine ionized calcium and pH. The reference liquid contains both a particular calcium ion activity and a pH-buffer and can therefore be used for calibration of both the calcium-sensitive electrode and the pH-electrode in the instruments. The pH-buffer is a nitrogen-containing organic sulphonic acid and the salt of this acid, the acid having a pK in the range of 6.6-7.6. The reference liquid has an ionic strength of 0.15-0.17, a buffer capacity .beta. in the range of 0.04-0.10 and is packed in glass ampoules.

REFERENCES:
patent: 3293134 (1966-12-01), Lenahan et al.
patent: 3799885 (1974-03-01), Dennis et al.
patent: 3932233 (1976-01-01), Ruzicka et al.
patent: 3941565 (1976-03-01), Schwartz
patent: 4126575 (1978-11-01), Louderback
By Moore, "The Journal of Clinical Investigation", vol. 19, 1970, pp. 318-334.
By Hans Neurath, "Biochemistry", vol. 5, 1966, pp. 467-477.
By Jack H. Ladenson and George N. Bowers, Jr., "Clinical Chemistry", vol. 19, No. 6, 1973, pp. 565-574.
By B. Seamonds et al., "Clinical Chemistry", vol. 18, No. 2, 1972, pp. 155-160.
By M. S. Mohan and R. G. Bates, NBS Special Publication, Jul. 1975, pp. 293-299.
B H. D. Schwartz, "Clinica Chimica Acta", 64, 1975, pp. 227-239.
By Young S. Kim et al., "Analytical Biochemistry", 89, pp. 521-528, (1978).
By Jack H. Ladenson et al., "Clinical Chemistry", 20, 1974, pp. 1337-1340.
By E. B. Sandell, "The Macmillan Company", Textbook of Quantitative Inorganic Analysis, 1964, pp. 526-527.
By Munessar Sankar and Roger G. Bates, "Analytical Chemistry", vol. 50, No. 13, Nov. 1978, pp. 1922-1924.
Kim, Y. S., et al., Anal. Biochem., vol. 89, pp. 521-528, (1978).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reference liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reference liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reference liquid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1200206

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.