K. Konuma

Hair analysis for drug abuse, Part II. Hair analysis for monitoring of methamphetamine abuse by isotope dilution gas chromatography/mass spectrometry.

Y. Nakahara, K. Takahashi, Y. Takeda, 1990, Forensic science international.

The spectrophotometric determination of trace molybdenum (VI) after collection and elution as molybdate ion on protonated chitin.

K. Sugawara, K. Akatsuka, S. Hoshi, 1997, Talanta.

The simple and rapid spectrophotometric determination of trace chromium(VI) after preconcentration as its colored complex on chitin.

K. Sugawara, K. Akatsuka, S. Hoshi, 1998, Talanta.

Simple and Rapid Spectrophotometric Determination of Trace Titanium(IV) with Preconcentration as Its Anionic Tiron Chelate on Chitin

K. Sugawara, K. Akatsuka, S. Hoshi, 1997 .

Hair analysis for drugs of abuse. VI. The excretion of methoxyphenamine and methamphetamine into beards of human subjects.

Y Nakahara, K Takahashi, K Konuma, 1993, Forensic science international.

Identification of active ingredients in dietary supplements using non-destructive mass spectrometry and liquid chromatography-mass spectrometry.

Ken-ichi Yoshida, M. Nakajima, K. Unuma, 2009, Forensic science international.