Monitoring polychlorinated biphenyls in pine needles using supercritical fluid extraction as a pretreatment method

2002 ◽  
Vol 976 (1-2) ◽  
pp. 393-398 ◽  
Author(s):  
Xue Rong Zhu ◽  
Hian Kee Lee
Chemosphere ◽  
2006 ◽  
Vol 63 (9) ◽  
pp. 1532-1538 ◽  
Author(s):  
Pär Hallgren ◽  
Rikard Westbom ◽  
Tobias Nilsson ◽  
Sune Sporring ◽  
Erland Björklund

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