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8197873 
Journal Article 
Interpretation of multivariate data: Relationship between phenanthrenes in crude oils 
Telnaes, N; Bjã¸Rseth, A; Christy, AA; Kvalheim, OM 
1987 
Yes 
Chemometrics and Intelligent Laboratory Systems
ISSN: 0169-7439 
2 
1-3 
149-153 
English 
Telnaes, N., Bjørseth, A., Christy, A.A. and Kvalheim, O.M., 1987. Interpretation of multivariate data: relationship between phenanthrenes in crude oils. Chemometrics and Intelligent Laboratory Systems, 2:149-153. Distributions of phenanthrene and alkylated phenanthrenes in 36 North Sea crude oils have been determined by gas chromatography. Principal component analysis reveals that the occurrence and mutual distribution of the monomethylphenanthrenes are independent of the relative abundance of phenanthrene. This observation implies that phenanthrene distribution parameters linearly related to maturity should not include phenanthrene itself. © 1987.