Determination of three polycyclic aromatic hydrocarbons in tea using four-way fluorescence data coupled with third-order calibration method

2019 ◽  
Vol 146 ◽  
pp. 957-964 ◽  
Author(s):  
Fengkai Shang ◽  
Yutian Wang ◽  
Junzhu Wang ◽  
Ling Zhang ◽  
Pengfei Cheng ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Calibration Method ◽  
Third Order ◽  
Polycyclic Aromatic

scholarly journals Application of Partial Least-Squares Calibration to Phosphorimetric Data for Determination of Polycyclic Aromatic Hydrocarbons in Spiked Environmental Samples

2000 ◽  
Vol 83 (2) ◽  
pp. 391-398
Author(s):  
A Segura Carretero ◽  
M Martinez Galera ◽  
C Cruces Blanco ◽  
M D Gil García ◽  
A Fernández Gutiérrez ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Least Squares ◽  
Partial Least Squares ◽  
Aromatic Hydrocarbons ◽  
Road Dust ◽  
Calibration Method ◽  
Ternary Mixtures ◽  
Relative Standard ◽  
Polycyclic Aromatic

Abstract A partial least-squares calibration method is proposed, for the first time, for phosphorescence signals. The proposed method is based on the determination of phenanthrene, fluoranthene, and benz[a]anthracene by room temperature phosphorimetry, using microemulsion solutions. The emission and first-derivative emission spectra of the ternary mixtures were tested to perform the calibration matrix. Improved recoveries were found for the prior differentiation step in the analysis of ternary mixtures of these polycyclic aromatic hydrocarbons in road dust samples. The proposed method yielded recoveries ranging from 93.2 to 115.3%, with relative standard deviations of < 6.8%.

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