title: Application of partial least square on quantitative analysis of L-, D-, and DL-tartaric acid by terahertz absorption spectra.
abstract: Absorption spectra of polycrystalline L-, D-, and DL-tartaric acid have been measured by terahertz time domain spectroscopy (THz-TDS). Different absorption bands are observed for DL-tartaric acid and its enantiomers (L- and D-tartaric acid). This result shows that the THz-TDS can be used for distinguishing between DL-tartaric acid and enantiomers (L- and D-tartaric acid). Moreover, partial least square (PLS) can be found to improve the quantitation of L-tartaric acid in L- and DL-tartaric acid mixture by THz-TDS.
authors.affiliation: Faculty of Pharmaceutical Sciences, Osaka Ohtani University, 3-11-1 Nishikiori-kita, Tondabayashi, Osaka 584-8540, Japan.
authors.forename: Rika
authors.initials: R
authors.lastname: Nishikiori
authors.forename: Mariko
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Keisuke
authors.initials: K
authors.lastname: Takano
authors.forename: Tokujiro
authors.initials: T
authors.lastname: Enatsu
authors.forename: Masahiko
authors.initials: M
authors.lastname: Tani
authors.forename: U Chandimal
authors.initials: UC
authors.lastname: de Silva
authors.forename: Norihito
authors.initials: N
authors.lastname: Kawashita
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Takagi
authors.forename: Shotaro
authors.initials: S
authors.lastname: Morimoto
authors.forename: Masanori
authors.initials: M
authors.lastname: Hangyo
authors.forename: Masaya
authors.initials: M
authors.lastname: Kawase
mesh_terms: D007202:Indicators and Reagents; D016018:Least-Squares Analysis; D013237:Stereoisomerism; D013644:Tartrates / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D013644:Tartrates; C029768:tartaric acid