Vol. 50, No. 1    February 2009   CONTENTS
Originals
(1) Factors Affecting the Variances of Copy Numbers in Real-time PCR as Estimated from a Calibration Curve
··· Takahiro WATANABE, Tamio MAITANI and Rieko MATSUDA
1
Note
(1) Analysis of Hexachlorobenzene in Food Red Nos. 104 (Phloxine) and 105 (Rose Bengal) by GC-ECD
··· Hiromi KAWASAKI, Noriko FURUSHO, Chie TATEBE, Hiroki KUBOTA, Tokue YANAGI, Yoshikazu YASUKOUCHI, Yoko MORI, Yasuko YAMASHITA, Tayoshi IIZUKA, Kaoru TAKAHATA, Jinichi TAKAHASHI, Kyoko SATO and Kenichi TANAMOTO
6
(2) Determination of Pesticides in Chinese Dumplings Using Liquid Chromatography-Tandem Mass Spectrometry
··· You OKAMOTO, Satoshi TAKATORI, Yoko KITAGAWA, Masahiro OKIHASHI, Naoki FUKUI, Hiroshi MURATA, Tatsuo SUMIMOTO, Yukio TANAKA and Hirotaka OBANA
10
(3) Examination of Original Plant of Jamaica Quassia Extract, a Natural Bittering Agent, Based on Composition of the Constituents
··· Atsuko TADA, Naoki SUGIMOTO, Kyoko SATO, Takumi AKIYAMA, Masaharu ASANOMA, Young Sook YUN, Takeshi YAMAZAKI and Kenichi TANAMOTO
16
(4) Toxicity and Toxin Profile of Tetrodotoxin Detected in the Scavenging Gastropod Nassarius (Alectrion) glans "Kinshibai"
··· Shigeto TANIYAMA, Yuta ISAMI, Takuya MATSUMOTO, Yuji NAGASHIMA, Tomohiro TAKATANI and Osamu ARAKAWA
22
Reports
(1) Estimation of the Daily Intake of Nitrate Based on Analysis of Total Diet Samples
··· Rieko MATSUDA, Takahiro WATANABE, Atsuko IKARASHI, Yuko SHIRAMASA and Tamio MAITANI
29
(2) Microbial Quality of Liquid Egg and Salmonella Infection Status in Japan
··· Yukiko HARA-KUDO and Kosuke TAKATORI
34
(3) Investigation of Residual DNAs in Sugar from Sugar Beet (Beta vulgaris L.)
··· Taichi OGUCHI, Mari ONISHI, Yukie CHIKAGAWA, Takashi KODAMA, Emiri SUZUKI, Masaki KASAHARA, Hiroshi AKIYAMA, Reiko TESHIMA, Satoshi FUTO, Akihiro HINO, Satoshi FURUI and Kazumi KITTA
41