Schiff test for rapid detection of low levels of aldehydes
US4753891A · kind A · utility
7Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Jul 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/202499
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved Schiff's reagent for detection of aldehydes (such as formaldehyde and gluteraldehyde) contains a para-rosaniline compound (such as para-rosaniline hydrochloride), orthophosphoric acid, a bisulfite compound (such as sodium metabisulfite), a phosphate compound (such as sodium orthophosphate monobasic), and water. This reagent provides lower detection levels and faster results than the reagents of the prior art, and is particularly useful in testing the rinse solutions of reusable medical equipment (such as hemodialysis equipment).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.