Spectrophotometric measurement in a chemical testing apparatus
US4229179A · kind A · utility
9Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Jun 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a spectrophotometric measuring apparatus sample liquid is pumped into a substantially cylindrical cuvette having an internal dimension such that a meniscus of a leading edge of a liquid sample pumped therethrough is maintained. Radiant energy directed through the sample liquid is directed across the path of fluid flow rather than along the length thereof. Consequently, spectrophotometric measurement is performed using a significantly reduced optical pathlength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.