Fluorometric analysis of pectenotoxin-2 in microalgal samples by high performance liquid chromatography
โ Scribed by Katsunoti Sasaki; Azusa Takizawa; Aurelia Tubaro; Laura Sidari; Roberto Della Loggia; Takeshi Yasumoto
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 77 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1056-9014
No coin nor oath required. For personal study only.
โฆ Synopsis
A rapid HPLC method with ยฏuorescence detection of pectenotoxin-2 (PTX2), a polyether macrolide toxin, in microalgae is presented. A dienophile reagent, DMEQ-TAD, was used for precolumn ยฏuorescence labeling. PTX2 could be quantitatively detected in the range 1ยฑ200 ng. This method conยฎrmed the occurrence of PTX2 in net haul samples mostly composed of dinoยฏagellates Dinophysis spp. collected in the Adriatic Sea, Italy and Mutsu Bay, Japan.
๐ SIMILAR VOLUMES
More than 90 dierent capsicums are found all over the world. They contain capsaicinoids, which are responsible for the hot and pungent ยฏavour. After extraction by a methanolยฑwater mixture (60 : 40, v/v) from capsicum oleoresins, 13 compounds were separated by analytical HPLC on a C18 Hypersil column
Thirteen phenolic compounds from Aloe barbadensis (syn. A. vera) and A. arborescens were analysed by high performance liquid chromatography, using a reverse phase column eluted with a methanol: water gradient, and detected by UV at 293 nm. Aloesin, 8-C-glucosyl-7-O-methyl-(S)-aloesol, neoaloesin A,
## Sample preparation of amphetamine and methamphetamine by means of supported liquid membrane technique for high-performance liquid chromatography analysis A technique for sample workup and enrichment using a supported liquid membrane (SLM) extraction and high-performance liquid chromatography (H
Direct injection versus liquid-liquid extraction for post-dose human plasma sample analysis by high performance liquid chromatography with tandem mass spectrometry (LC/MS/MS) have been studied using a drug candidate compound. For the direct-injection method, an Oasis 1 HLB column (1 ร 50 mm, 30 mm)