Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Inorganic standards or controls
Patent
1980-06-24
1982-12-14
Gron, Teddy S.
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
Inorganic standards or controls
23908, 2524081, 436 16, G01N 2756, C09K 300, G01N 3348, G01N 2746, G01N 2750
Patent
active
043636330
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.
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Gron Teddy S.
Radiometer A/S
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