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Cloud point extraction
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Ebook "Advances in dye removal technologies" describes the various advanced treatment methods for removal of multiple types of dyes from effluent stream. It pays particular attention to the economic aspects of treatment of textile waste-water. The different technologies illustrated in the book include adsorption, nanofiltration, advanced oxidation, micellar enhanced ultrafiltration, cloud-point extraction, and electrocoagulation.
350p
lamquandat
28-12-2023
3
2
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Cloud point extraction (CPE), which is the most popular coacervate-based extraction method, was utilized for the separation and preconcentration of trace amounts of cadmium, lead, and nickel. Quinalizarin was used as complexing agent and Triton X-114 was used as surfactant. After extraction, analyte ions were determined by flame atomic absorption spectrometry. The detection limits (3 s) of 1.8 µg L −1 for Cd(II), 3.2 µg L −1 for Pb(II), and 2.8 µg L −1 for Ni(II) were obtained using 50 mL of solutions.
9p
langthannam
29-12-2021
13
0
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In the current study, a simple and efficient analytical method for preconcentration and determination of Cd(II), Pb(II), and Sn(II) in some cosmetic samples, using ultrasonic assisted-cloud point extraction and flame atomic absorption spectrometry, was developed. The method is based on the ternary complex formations of Sn(II), Pb(II), and Cd(II), which are available in the form of neutral and/or anionic hydroxo complexes (Sn(OH)−3, Pb(OH)−3, Cd(OH)2, and/or Cd(OH)−3), with Victoria Pure Blue BO (VPB +) in the presence of cetylpyridinium chloride at pH 8.
14p
langthannam
29-12-2021
8
0
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A new system was developed for the preconcentration and determination of cadmium levels in water following online cloud-point extraction and analysis by flame atomic absorption spectrometry. The method uses cloud-point extraction of the complex formed between Cd(II) ions and the reagent 2-(5-bromo-2’-thiazolylazo)- p-cresol (Br-TAC) using Triton X-114 as a surfactant. The main steps of the procedure, extraction, filtration, and detection were conducted online.
9p
langthannam
29-12-2021
7
0
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Carmoisine (E122) is a synthetic azo dye that is generally used to give a red color to food products. In this work, a sensitive and simple method was developed for the determination of carmoisine based on cloud point extraction. To obtain the optimum conditions for the extraction efficiency of carmoisine, the effects of different analytical parameters such as H2 SO4 concentration, concentration of Triton X-114, and equilibrium temperature were studied. The calibration graph was linear between 0.05 and 5.
7p
langthannam
29-12-2021
9
1
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This research work is focused on the cloud point extraction (CPE) procedure for the preconcentration of rifampicin prior to its determination in water. The UV/vis spectrophotometric method was adapted for the measurement of rifampicin content after the phase separation. Triton-X 100 was used as the nonionic surfactant which contains hydrophilic polyethylene chain feasible for the extraction of analyte. Various analytical parameters that can affect the extraction efficacy were optimized to achieve linearity of the proposed method in the concentration range of 3.54–81.41 mgL–1.
10p
tudichquannguyet
29-11-2021
9
1
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Trong nghiên cứu này Cr(VI) sẽ tạo phức với 1,5-diphenylcarbazide (DPC) tạo thành phức chất có màu tím đỏ và được chiết với Triton X-100 là một chất hoạt động bề mặt không ion. Sau đó Cr(VI) sẽ được xác định bằng phương pháp quang phổ hấp thụ nguyên tử hoặc ICP-MS. Một số dạng khác của Cr bao gồm tổng Cr và Cr(III) sẽ được xác định bằng các phương pháp tương tự.
85p
larachdumlanat129
20-01-2021
29
3
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Thông qua khảo sát các điều kiện tối ưu của AAS đo lường cũng như các yếu tố ảnh hưởng đến các kỹ thuật CPE như thời gian, nhiệt độ, pha ly tâm tốc độ, nồng độ thuốc thử, nồng độ dung dịch đệm, độ nhớt, chất hoạt động bề mặt, ... Bằng cách kết hợp kỹ thuật khai thác điểm đám mây (CPE) và phương pháp quang phổ hấp thụ nguyên tử (AAS) để xác định lượng vết Pb, Cd trong nước. Sự phục hồi của kim loại được xác định sau quá trình phân tích.
9p
meolep3
18-12-2018
193
7
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