Direct Determination of Manganese in Edible Fungi Using Suspension Sample Introduction and Hypo-Sensitive Wavelength by Flame Atomic Absorption Spectrometry
WANG Yuan-zhong1,LI Tao2,LIU Hong-gao3*,LI Xing-kui3
1. Inmol Laboratory of Biotechnology, Kunming 650212, China 2. Yuxi Teacher’s College, Yuxi 653100, China 3. Yunnan Agricultural University, Kunming 650201, China
Abstract：A method for the direct determination of manganese in edible fungi using suspension sample introduction and hypo-sensitive wavelength by flame atomic absorption spectrometry(FAAS) was developed without chemical treatment. Agar sol was used as a suspending agent. Ground and sieved edible fungi sample was suspended homogeneously in the agar sol and introduced into air-acetylene flame, and manganese in the sample was determined directly. The results showed that the method was simple, and rapid with no interference. The linear range was 0-12 μg·mL-1. The relative standard deviation (RSD) was 0.67% and the recovery was 97%-99%. It has been applied to the determination of manganese in edible fungi, standard boletus edulis and melanoleuca arcunta samples, and satisfactory results were achieved.
王元忠1,李涛2,刘鸿高3*,李兴奎3 . 悬浮液进样-火焰原子吸收光谱法测定食用菌中的锰[J]. 光谱学与光谱分析, 2007, 27(05): 1021-1023.
WANG Yuan-zhong1,LI Tao2,LIU Hong-gao3*,LI Xing-kui3 . Direct Determination of Manganese in Edible Fungi Using Suspension Sample Introduction and Hypo-Sensitive Wavelength by Flame Atomic Absorption Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(05): 1021-1023.
[1] DENG Shi-lin, LI Xin-feng, ZHOU Ping(邓世林，李新风，周 平). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1996，16(3)：106. [2] YUAN Zhi-neng, SHAN Xiao-quan, NI Zhe-ming(袁智能，单孝全，倪哲明). Environmental Chemistry(环境化学)，1987，6(3)：32. [3] XU Man-ying, ZHAO Duo(徐曼英，赵 多). Physical Testing and Chemical Analysis Part B: Chemical Analysis(理化检验-化学分册)，1987，23(4)：203. [4] Hinds M W, Jackson K W. Analyst, 1985, 110：497. [5] LIU Hong-wang, PAN Zhen-qiu, FENG Jia-li(刘红望，潘振球，冯家力). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1997，17(3)：82. [6] HUANG Yu-an, ZHOU Fang-qin, LONG Si-hua, et al(黄玉安，周方钦，龙斯华，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2004，24(2)：238. [7] CHEN Shi-zhong(陈世忠). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2003，23(5)：993. [8] SONG Guang-sen(宋光森). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2005，25(4)：570. [9] LIU Li-xing, LUAN Shu-bin, ZHANG Qi-kai(刘立行，栾树斌，张启凯). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1999，19(3)：419. [10] LIU Li-xing, ZHANG Qi-kai, HU Yang(刘立行，张启凯，胡 洋). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1999，19(3)：424.
