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不二门温泉位于湖西自治州永顺县城南西约三公里外的猛洞河东侧河漫滩上.所处地貌类型属溶丘洼地峡谷地貌.该温泉无色、微臭、透明.水温在40～41℃之间,流量较稳定,为25～35升/秒.其化学组分含量也很稳定,pH值为7.6～8.0,矿化度为350～400毫克/升,总硬度15～16.58德度.水质类型为SO_4HCO_3—Ca·Mg型.目前,对该温泉中微量金属元素的测定尚未见报道.这里,我们采用火焰原子吸收光谱法,首次测定了不二门温泉中的十四种金属元素含量,并将此结果与其他矿泉中同类元素的含量作了比较.
Fu Er Men Hot Spring is located in Yongshun County West Lake about three kilometers southwest of Mendong River flood plain on the east side of the river. ℃, the flow rate is relatively stable, 25 ~ 35 liters / sec. Its chemical composition content is also very stable, pH value of 7.6 ~ 8.0, salinity of 350 ~ 400 mg / l, the total hardness of 15 ~ 16.58 degrees . The type of water is SO_4HCO_3-Ca · Mg type.At present, the determination of trace metal elements in this hot spring has not been reported here.We used flame atomic absorption spectrometry for the first time to determine the 14 kinds of metal elements Content, and this result and other similar elements in the mineral content were compared.