Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
2000-01-20
2000-09-05
Gupta, Yogendra
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510181, 510405, 510413, 510421, 510499, 134 221, 134 2211, 134 2212, 422 44, 422 50, 422 681, C11D 172, C11D 330, C11D 708
Patent
active
061142921
ABSTRACT:
A method of using a cleansing composition for cleansing a quantitatively aspirating sampling probe in an automated hematological analyzer is disclosed. The cleansing composition employed in the method is formulated to cleanse instantaneously on contact, and practically eliminates carry-over of hematological sample material, assaying reagents or of the cleansing composition itself. The cleansing composition is an acidic aqueous solution of pH 5.0 or less, including (1) a substance having a primary amino group; and (2) one or more nonionic surfactants selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ester and polyoxyethylene sorbitan ester. Assay-material contaminated surfaces of the sampling probe are contacted with a cleansing amount of the cleansing composition.
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Hoshiko Susumu
Miyaji Miki
Boyer Charles
Gupta Yogendra
Sysmex Corporation
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