منابع مشابه
extraction of ultra trace amounts bismuth in water samples using cloud point extraction with 2-amino-cyclopentene-1-dithiocarboxylic acid
a new approach for a cloud point extraction-electrothermal atomic absorption spectrometric method was used for determining bismuth. the aqueous analyte was acidified with sulfuric acid (ph 3.0–3.5). triton x-114 was added as a surfactant and 2-amino-cyclopentene-1-dithiocarboxylic acid was used as a complexing agent. after phase separation at 50 ◦ c based on the cloud point separation of the mi...
متن کاملCloud Point Extraction of Pesticide Residues
Pesticides including organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), and nitrogen-containing herbicides are types of well-known environmental contaminants. Pesticides are generally categorized based upon their persistence in the environment. Organochlorine pesticides are considered persistent pesticides. These pesticides have long environmental half-lives and tend to bioac...
متن کاملSimultaneous Determination of Carbazoles in Water Samples by Cloud Point Extraction Coupled to HPLC
Cloud point extraction (CPE) as a rapid, simple and efficient method coupled with high performance liquid chromatography (HPLC) was used for sample preparation and subsequent determination of carbazole, trinitrocarbazole (TrNC) and tetra nitro carbazole (TNC) in water samples. Some effective parameters on extraction, such as volume of Triton X-100, extraction time, extraction temperature, ionic...
متن کاملPurification and Fractionation of Carbon Dots using pH-controlled Cloud Point Extraction Technique
In this work, we describe a simple, green and general procedure for the purification and fractionation of carbon dots (CDs). CDs coated with oxygen-containing functional groups were synthesized by thermal pyrolysis of citric acid. The product of the reaction was first Purified and then fractionated into two distinct kinds of CDs (f4 and f1) using pH-controlled cloud point extraction (CPE) techn...
متن کاملSelective Cloud Point Extraction for the Spectrophotometric Determination of Cetylpyridinium Chloride in Pharmaceutical Formulations
In this work, we developed a simple and selective method for separation and spectrophotometric determination of trace amounts of cetylpyridinium chloride (CPC) in pharmaceutical products using cloud point extraction (CPE) technique. The method is based on cloud point extraction of the CPC in alkali conditions using of nonionic surfactant Triton X-114. Under selected conditions, the calibration ...
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ژورنال
عنوان ژورنال: Separation Science and Technology
سال: 2014
ISSN: 0149-6395,1520-5754
DOI: 10.1080/01496395.2014.919322