Cloud point extraction coupled with derivative of carbofuran as a preconcentration step prior to HPLC was written by Chen, Jian-bo;Zhao, Wei-jun;Liu, Wei;Zhou, Zhi-ming;Yang, Ming-min. And the article was included in Food Chemistry in 2009.Name: 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol This article mentions the following:
Carbofuran can be hydrolyzed to from 2,3-dihydro-2,2-dimethyl-7-benzofuranol (BF). BF is coupled with 4-aminoantipyrine (AP) in presence of potassium ferricyanide (K3Fe(CN)6) to generate red colored derivative(BFAP)having λmax 530 nm. Cloud point extraction (CPE) methodol. and using surfactant Triton X-100 as extractant was applied as a preconcentration step prior to HPLC, the surfactant-rich phase containing BFAP was then analyzed by HPLC in visible region. The high back ground absorbance of Triton X-100 in UV region was completely avoided. A new visible detection method with high-performance liquid chromatog. (HPLC) has been developed for the determination of carbofuran. Using this method, we found that carbofuran residues could be determined with recoveries ranging from 80.4% to 84.5%, relative standard deviations in the range of 2.51-3.26% for three fortified rice levels, and the limit of detection as 5.0 × 10-4 cJ/cK. In the experiment, the researchers used many compounds, for example, 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol (cas: 1563-38-8Name: 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol).
2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol (cas: 1563-38-8) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antioxidant, antitubercular, antiplasmodial, insecticidal.Name: 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem