A method for the determination of acetoacetate has been developed based on solid-phase spectrophotometry (SPS). The acetoacetate reacts with nitroprusside and glycine and the reaction product is sorbed on Dowex 1-X8 resin. The absorbance of the resin phase at 590 and 720 nm is measured directly. The
Determination of unsulphonated quinoline yellow in soft drinks by solid-phase spectrophotometry
✍ Scribed by Luis F. Capitán-Vallvey; Ignacio de Orbe; Sonia López-Rodríguez; Ramiro Avidad
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 358 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0026-3672
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
A simple and sensitive spectrophotometric method for the determination of molybdenum(W) in sea water samples was developed. It is based on the extraction of the M~VI)-phenylfluorone complex on a membrane filter by simple ~ltration and direct measurement of the absorbance on the fiiter. The extractio
A new, simple, sensitive and inexpensive method for simultaneous determination of Sunset Yellow FCF (SY), Quinoline Yellow and their respective unsulphonated products (Sudan I (SUD) and Quinoline Yellow Spirit Soluble (QYSS)) in mixtures is proposed. Sunset Yellow and Quinoline Yellow were selective
A method for the determination of 0.1 pg/l of warfarin in drinking water involving concentration by solid-phase extraction is described. A lOOO-ml volume of drinking water is aspirated through a solid-phase extraction column and warfarin is eluted to 1.0 ml. The eluate is analysed by reversed-phase