Metal–organic framework based micro solid phase extraction coupled with supramolecular solvent microextraction to determine copper in water and food samples

2018 ◽  
Vol 42 (8) ◽  
pp. 5806-5813 ◽  
Author(s):  
Rohullah Kashanaki ◽  
Homeira Ebrahimzadeh ◽  
Morteza Moradi
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Metal Organic Framework ◽  
Food Samples ◽  
Phase Extraction ◽  
Real Samples ◽  
Supramolecular Solvent ◽  
Metal Organic ◽  
Determination Of Copper

D-μ-SPE-SUPRAS-ME followed by GFAAS was successfully used for preconcentration and determination of copper in real samples.

Dispersive solid-phase extraction using the metal–organic framework MIL-101(Cr) for determination of benzo(a)pyrene in edible oil

2019 ◽  
Vol 11 (27) ◽  
pp. 3467-3473 ◽  
Author(s):  
Zhiyang Lv ◽  
Cheng Yang ◽  
Yuehong Pang ◽  
Weiying Xie ◽  
Xiaofang Shen
Keyword(s):  
Solid Phase Extraction ◽  
High Efficiency ◽  
Solid Phase ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Edible Oil ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Metal Organic

Metal–organic frameworks MIL-101(Cr) has high efficiency for dispersive solid-phase extraction of benzo(a)pyrene in edible oil by π–π interaction and size effect.

scholarly journals Determination of Enantiomeric Excess by Solid-Phase Extraction Using a Chiral Metal-Organic Framework as Sorbent

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2802
Author(s):  
Jun-Hui Zhang ◽  
Bo Tang ◽  
Sheng-Ming Xie ◽  
Bang-Jin Wang ◽  
Mei Zhang ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Metal Organic Framework ◽  
Enantiomeric Excess ◽  
Average Error ◽  
Phase Extraction ◽  
Experimental Conditions ◽  
Standard Curve ◽  
Metal Organic

Metal-organic frameworks (MOFs) have recently attracted considerable attention because of their fascinating structures and intriguing potential applications in diverse areas. In this study, we developed a novel method for determination of enantiomeric excess (ee) of (±)-1,1′-bi-2-naphthol by solid-phase extraction (SPE) using a chiral MOF, [Co(l-tyr)]n(l-tyrCo), as sorbent. After optimization of the experimental conditions, a good linear relationship between the ee and the absorbance of the eluate (R2 = 0.9984) was obtained and the standard curve was established at the concentration of 3 mmol L−1. The ee values of (±)-1,1′-bi-2-naphthol samples can be rapidly calculated using the standard curve after determination of the absorbance of the eluate. The method showed good accuracy, with an average error of 2.26%, and is promising for ee analysis.

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