研究者詳細 - 南　雅代

論文 - 南　雅代

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High precision C-14 measurements with the HVEE Tandetron AMS system at Nagoya University

Nakamura T, Niu E, Oda H, Ikeda A, Minami M, Ohta T, Oda T

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 223 巻 ( SPEC. ISS. ) 頁： 124 - 129 2004年8月

記述言語：日本語出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

In 1996/1997, a 14C-AMS system (model 4130-AMS) manufactured by High Voltage Engineering Europe (HVEE), B.V., The Netherlands, was installed at the Center for Chronological Research (CCR), Nagoya University. The system provides highly precise and accurate 14C determinations as well as δ13C values for graphite targets (1.5 mg carbon and 3 mg iron powder) prepared from standards and samples. One sigma errors in 14C ages typically range from ±20 to ±40 yr for materials younger than 8000 BP, depending on absolute 14C ages or 14C counting uncertainties. Standard deviations of 13C/12C ratios range from ±0.1‰ to ±0.9‰. For relatively young samples, accuracies of less than 10‰ are obtained using IAEA reference materials and FIRI test samples. Background levels on the 14C-AMS system range from 52 to 54 ka BP for a pure graphite powder. The HVEE 14C-AMS system at the CCR has been used routinely to date samples with a variety of research applications. © 2004 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nimb.2004.04.027

Web of Science

Scopus

Chemical techniques to extract organic fractions from fossil bones for accurate ¹⁴C dating, 査読有り

Minami, M., Muto, H. and Nakamura, T.

Nucl. Instr. and Meth. in Phys. Res. B223-224 巻頁： 302-307 2004年

Studies on elemental distribution and circulation in view of multielement analysis of Eastern part of Aichi Prefecture.

南雅代, 山本鋼志, 三村耕一

Heisei 15 th Report of Atomic Energy Usage no.43 頁： 51 - 56 2004年

Isotope diluted neutron activation analysis (ID-NAA) for quantitative analysis of PGEs and Re

Tanaka T, Senda R, Shibata S, Minami M, Tanimizu M

GEOCHIMICA ET COSMOCHIMICA ACTA 66 巻 ( 15A ) 頁： A763 - A763 2002年8月

Diurnal variation of CO2 concentration, Δ¹⁴C and δ¹³C in an urban forest --Estimate of the anthropogenic and biogenic CO₂ contributions--. 査読有り

Takahashi, H., Konohira, E., Hiyama, T., Minami, M., Nakamura, T. and Yoshida, N.

Tellus 54B 巻頁： 97-109 2002年

An extraction system to measure carbon-14 terrestial ages of meteorites with a Tandetron AMS at Nagoya University 査読有り

Minami, M. and Nakamura, T.

Radiocarbon 43 巻 ( 2A ) 頁： 263-270 2001年

Studies on elemental distribution and cycles in geosphere using multisample and multielements analyses.

南雅代

Heisei 12th Report of Atomic energy usage no.40 頁： 118 - 136 2001年

Geochemical mapping as a fruitful field training for geosciences

山本鋼志, 三村耕一, 南雅代

Chisitsu News vol.558 頁： 41 - 47 2001年

Neutron activation analysis using an automated γ-ray detection system at Radioisotope Center, Nagoya University.

南雅代

Annual Report of Nagoya University Museum vol.17 頁： 15 - 32 2001年

XAD-2樹脂処理法による化石骨のAMS¹⁴C年代査読有り

南　雅代・中村俊夫

第四紀研究 39 巻頁： 547-557 2000年

AMS radiocarbon age for fossil bone by XAD-2 chromatography method

Minami M., Nakamura T.

Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 172 巻 ( 1-4 ) 頁： 462 - 468 2000年

記述言語：日本語出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

The XAD-2 chromatography method was examined for its ability to efficiently eliminate exogenous organic matter from fossil bones and to improve the accuracy of radiocarbon (14C) dating and stable isotope determinations on bone proteins. The fossil bones used in the experiment were animal fossil bones collected from the Awazu submarine archaeological site, Shiga, Japan. For comparison, the gelatin-extraction method was also applied to the same samples. It was found that the gelatin-extraction method is sufficient for 14C dating on well-preserved bones, but insufficient on poorly preserved bones, containing less than 1% extractable gelatin. The XAD-2 resin is useful for the clean up of proteins especially from poorly preserved bones. The carbon stable isotope fractionation of around 1‰ by XAD-2 treatment on modern collagen standards was larger than reported previously. The isotopic variation by sequential extraction of bones probably originates from changes in the amino acid composition and seems to be less sensitive to the indication of the removal of organic contamination. © 2000 Elsevier Science B.V. All rights reserved.

DOI： 10.1016/S0168-583X(00)00397-9

Scopus

The HVEE tandetron AMS system at Nagoya University

Nakamura T., Niu E., Oda H., Ikeda A., Minami M., Takahashi H., Adachi M., Pals L., Gottdang A., Suya N.

Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 172 巻 ( 1-4 ) 頁： 52 - 57 2000年

記述言語：日本語出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

In 1996/97, we installed a second-generation AMS system (model 4130-AMS) manufactured by HVEE, B.V., The Netherlands. Although we encountered a lot of problems during the installation and tuning up of the machine, our new system has now reached good stability and reproducibility in performing 14C/12C and 13C/12C measurements. According to the reproducibility tests conducted in January 1999, where six graphite targets prepared from HOxII standard material were measured, the standard deviation for 14C/12C reproducibility is around 1.6%e (comparable with counting statistics) and that for 13C/12C is 0.28%e. The background level of the AMS system was measured using a pure graphite (commercial graphite rod). It lies between 50 and 55 ka BP. We are still on the way to reduce the background. However, we are now prepared to start routine measurements of unknown-age samples. © 2000 Elsevier Science B. V. All rights reserved.

DOI： 10.1016/S0168-583X(00)00398-0

Scopus

ＸＡＤ‐２樹脂処理法による化石骨のＡＭＳ｀１４´Ｃ年代　　ゼラチン抽出法との比較

南雅代, 中村俊夫

第四紀研究 39 巻 ( 6 ) 頁： 547 - 557 2000年

記述言語：日本語出版者・発行元：日本第四紀学会

化石骨から骨の本質成分であるアミノ酸を抽出し,XAD-2樹脂という吸着ポリマーに通して,周囲の堆積物由来の有機不純物を除去する方法を試み,従来行ってきたゼラチンコラーゲン抽出法との比較を行った.試料とした化石骨は,滋賀県粟津湖底遺跡の第3貝塚から採取された獣骨片である. XAD-2樹脂処理して得られた化石骨中のアミノ酸集合体抽出成分は,ゼラチンコラーゲン抽出成分に比べて14C年代値は古く,同層から採取された木片の示す年代に近づく傾向を示した.特に,ゼラチンコラーゲンの収率が低い骨試料では,XAD-2樹脂処理されたアミノ酸集合体成分とゼラチンコラーゲン成分の14C年代値の間に約400年の差が見られ,後者の年代は実際よりも若返っていることが示唆された.このことから,保存が良好ではなく,コラーゲン収率が悪い化石骨に対して,今回試みたXAD-2吸着樹脂を用いる方法は,信頼度の高い14C年代値を得るために有効であることがわかった.

DOI： 10.4116/jaqua.39.547

CiNii Research

熊本県八代郡泉村京丈山洞穴より産出したニホンオオカミ全身骨格

北村直司・小原　巌・南　雅代・中村俊夫

熊本博物館館報 11 巻頁： 35-69 1999年

XAD-2樹脂処理による同位体分別について

南雅代, 池田晃子

名古屋大学加速器質量分析計業績報告書 9 巻頁： 308 - 311 1998年3月

記述言語：日本語出版者・発行元：名古屋大学

XAD-2 resin is considered the good materials to separate quantitatively the polar amino acids from the less polar fulvic and humic acids. To evaluate if XAD-2 treatment affects isotope values, δ ^<13>C and δ ^<15>N were measured on bulk sample by a simple preparation, gelatin-collagen extracted by usual method, decalcified bone powder and XAD-purified hydrolysates from a modern well-preserved ivory sample "IVRY-1". Among three fractions of bulk, gelatin-collagen and decalcified ivory powder, there are almost no difference in both δ ^<13>C and δ ^<15>N. On the other hand, XAD-treated hydrolysate has apparently more positive δ ^<13>C and δ ^<15>N values than the three fractions. However, it is doubt whether the result is due to isotope fractionation by XAD-2 treatment because the fulvic and humic contamination in the collagen might affect isotope values of bulk, gelatin-collagen and decalcified ivory powder. The C/N ratio in fulvic and humic phases is significantly more higher than collagen. In the next study, we have to study modern collagen standards or amino acid standards to evaluate if XAD-2 resin introduce isotope fractionation.

CiNii Research

Approximate estimation method of the degree of lanthanide tetrad effect and application to the tetrad effects in lanthanide ionic radii

Minami M, Masuda A

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 177 巻頁： 1021 - 1022 1998年1月

Comparison of AMS radiocarbon ages between amino acids and collagens in fossil bones 査読有り

Minami, M. and Nakamura, T.

Chinese Science Bulletin 43 巻頁： 89 1998年

Y-Ho fractionation and lanthanide tetrad effect observed in cherts

Minami M, Masuda A, Takahashi K, Adachi M, Shimizu H

GEOCHEMICAL JOURNAL 32 巻 ( 6 ) 頁： 405 - 419 1998年

Effects of dietary docosahexaenoic acid on survival time and stroke-related behavior in stroke-prone spontaneously hypertensive rats

Minami M., Kimura S.I., Endo T., Hamaue N., Hirafuji M., Monma Y., Togashi H., Yoshioka M., Saito H., Watanabe S., Kobayashi T., Okuyama H.

General Pharmacology 29 巻 ( 3 ) 頁： 401 - 407 1997年9月

記述言語：日本語出版者・発行元：General Pharmacology

1. Dietary docosahexaenoic acid (DHA) suppressed the age dependent increase in systolic blood pressure and prolonged the average survival time of stroke-prone spontaneously hypertensive rats (SHRSP). 2. Dietary DHA (1% and 5% in diets) altered the circadian rhythm of SHRSP, causing significant increases in ambulatory activity during the dark period. At the onset of stroke, desynchronization with light and dark phases and new biological rhythms were noted in all of the control SHRSP (DHA 0%). DHA treated SHRSP did not show such behavioral changes. 3. These effects were accompanied by the increase of DHA and the decrease of AA levels in plasma and brain cortex. 4. It was concluded that dietary DHA suppresses the development of hypertension and stroke-related behavioral changes, resulting in prolongation of the SHRSP's life span.

DOI： 10.1016/S0306-3623(96)00487-9

Scopus

*Approximate estimation of the degree of lanthanide tetrad effect from the data potentially involving all lanthanides 査読有り

Minami, M. and Masuda, A.

Geochemical Journal 31 巻頁： 125-133 1997年

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