Determination of trace uranium by resonance fluorescence method coupled with photo-catalytic technology and dual cloud point extraction

Author(s):  
Jiekang Li ◽  
Guirong Li ◽  
Qian Han
2016 ◽  
Vol 8 (30) ◽  
pp. 5984-5993 ◽  
Author(s):  
Guirong Li ◽  
Jiekang Li ◽  
Qian Han

(1) Extracting and purifying uranium in complex samples by dCPE with [UO22+–SA1]. (2) Detecting uranium super sensitively by a photocatalytic RF method with [UO22+–SA2]. (3) Coupling with separation, purification and analysis procedures exhibited a number of advantages, including high selectivity, high sensitivity and low cost.


1973 ◽  
Vol 19 (5) ◽  
pp. 1425-1427
Author(s):  
M. A. Bol'shov ◽  
I. D. Guseev ◽  
A. V. Zybin ◽  
V. G. Koloshnikov ◽  
I. A. Maiorov ◽  
...  

ACS Omega ◽  
2021 ◽  
Author(s):  
Yongsheng Ji ◽  
Le Wu ◽  
Ruihong Lv ◽  
Haohao Wang ◽  
Shuhui Song ◽  
...  

2012 ◽  
Vol 95 (3) ◽  
pp. 845-849 ◽  
Author(s):  
Mohammad Mirzaei ◽  
Atieh Karimi Naeini ◽  
Mansoureh Behzadi

Abstract A simple and sensitive method has been developed for preconcentration and determination of genistein in soybeans. This method is based on cloud point extraction (CPE) of genistein from soybeans using ethylene glycol monoalkyl ether (Genapol X-080) as a nonionic surfactant. The concentration of extracted genistein was determined by HPLC with a UV detector. Optimum experimental conditions were established. With 5% Genapol X-080 (v/v), a liquid/solid ratio of 25:1 mL/g, and ultrasonic-assisted extraction at 40°C for 45 min, the extraction percentage of genistein reached its highest value. The preconcentration factor for genistein was about 16.5. The RSD for seven replicate measurements and the LOD were ±4.45% and 15.0 ng/mL, respectively. CPE is simple, inexpensive, and suitable for extraction of genistein from soybean. It uses environmentally friendly surfactants and offers a convenient alternative to more conventional extraction systems.


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