Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1988-04-29
1990-11-06
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386417, 436180, B01L 302, G01N 114
Patent
active
049676067
ABSTRACT:
An improved method for pipetting multiple aliquots of liquid employs a preliminary back sip prior the first expression of an aliquot of the liquid; an adjustable back sip between each expression of aliquots of liquid; and a blow out volume of air, aspirated into the pipette prior to the initial aspiration of liquid, for blowing out residual liquid after the expression of the last aliquot of liquid. The improved method for pipetting liquid may be performed on an improve apparatus which includes a microprocessor having within its memory a schedule or correlation for the optimal back sip to execute after the expression of any given aliquot. The microprocessor may also include means for driving the apparatus so as to perform the preliminary back sip and the aspiration of the blow out volume.
REFERENCES:
patent: 3963151 (1976-06-01), North, Jr.
patent: 4346742 (1982-08-01), Chase et al.
patent: 4475666 (1984-10-01), Bilbreg et al.
patent: 4478094 (1984-10-01), Salomaa et al.
patent: 4517850 (1985-05-01), Wiseman et al.
patent: 4586546 (1986-05-01), Mezei et al.
patent: 4598840 (1986-07-01), Burg
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Patent Abstracts of Japan; ABS Grp. No. P254; ABS vol. No.: vol. 8, No. 33; ABS Pub Date: Feb. 14, 1984; (English Language Abstract of Japanese Patent Document 58-189560 cited above).
Caveney Robert
Wells John R.
Caveo Scientific Instruments, Inc.
Lewis Donald G.
Noland Tom
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