利用全反射X射线荧光光谱法研究土壤中活动态元素提取动力学

doi:10.11720/wtyht.2020.1334

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摘要

活动态提取技术是深穿透地球化学研究隐伏矿的有效手段之一。提取时间是活动态提取技术的一个关键因子,由于提取剂与目标元素、赋存矿物的作用方式不同,提取时间对提取效果的影响会不同。本研究采用全反射X射线荧光光谱法(TXRF)测定土壤中Cu、Pb、Zn、Ni、Mn活动态提取量随提取时间的变化。结果表明,在1 h内,分析元素提取量随提取时间急速增长,在7 h内提取量增长速率较高,分析元素提取量基本在24 h达到平衡。对各元素的提取过程建立了两点动力学模型w_t=w₁exp(-k₁t)+w₂exp(-k₂t),模拟提取土壤中两种吸附形式的活动态元素,方程中k₁代表非专性吸附活动态(如离子态、静电吸附、以纳微颗粒形式存在)的提取速率常数,提取速率较快,k₂代表专性吸附的活动态(粘土吸附态、铁锰氧化物弱结合或有机络合态)的提取速率常数,提取速率相对较慢。

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	王冀艳
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	詹秀春
	刘勉

关键词 ：全反射X射线荧光光谱法(TXRF), 活动态提取, 土壤, 提取时间, 动力学模型

Abstract：

The leaching of elements of mobile forms is one of the effective techniques in deep penetrating geochemistry in search of concealed deposits. The leaching time as an important factor has a great effect on the leaching results because of the different action modes of extractant, target elements and minerals. The total reflection X-ray fluorescence spectrometry (TXRF) was used to determine the change of the leaching amount of mobile forms of Cu, Pb, Zn, Ni and Mn with the leaching time. The results showed that the leaching amount of analytical elements increased rapidly within 1 hour, increased at a high rate within 7 hour and reached a balance at 24 h. The nonlinear kinetic model of w_t = w₁ exp(-k₁t) + w₂ exp(-k₂t) was established to simulate the leaching course for mobile forms of elements adsorbed by two forms in soils. In the equation, k₁ which is relatively fast represents the leaching rate of the non-obligate adsorption of mobile forms of elements such as ion form, electrostatic adsorption form, and existence in the form of nanoscale metal particles, while k₂ which is relatively slow represents the leaching of the obligate adsorption of mobile forms of element, such as clay adsorption form, weak binding form of iron and manganese oxide or organically bound form.The kinetic model further provides a basis for exploring the leaching mechanism of mobile forms of elements.

Key words： total reflection X-ray fluorescence spectrometry (TXRF) leaching mobile forms of elements soil leaching time kinetic model

收稿日期: 2019-06-22 出版日期: 2020-04-22

P632

基金资助:国家重点研发计划项目(2016YFC0600603)

作者简介: 王冀艳(1983-),女,硕士,高级工程师,主要从事无机元素分析研究工作。Email: 94396436@qq.com

引用本文:

王冀艳, 储彬彬, 姚文生, 詹秀春, 刘勉. 利用全反射X射线荧光光谱法研究土壤中活动态元素提取动力学[J]. 物探与化探, 2020, 44(2): 350-355.
Ji-Yan WANG, Bin-Bin CHU, Wen-Sheng YAO, Xiu-Chun ZHAN, Mian LIU. A study of the kinetic model of leaching mobile forms of elements in soils by the total reflection X-ray fluorescence spectrometry. Geophysical and Geochemical Exploration, 2020, 44(2): 350-355.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2020.1334 或 https://www.wutanyuhuatan.com/CN/Y2020/V44/I2/350

Fig.1 不同提取时间对Cu提取量的影响

Fig.2 不同提取时间对Pb提取量的影响

Fig.3 不同提取时间对Zn提取量的影响

Fig.4 不同提取时间对Ni提取量的影响

Fig.5 不同提取时间对Mn提取量的影响

Table 1 元素活动态提取过程动力学模拟参数

[1]	王学求 . 深穿透勘查地球化学[J]. 物探与化探, 1998,22(3):166-169.
[1]	Wang X Q . Deep penetration exploration geochemistry[J]. Geophsicai and Geochemical Exploration, 1998,22(3):166-169.
[2]	王学求 . 深穿透地球化学迁移模型[J]. 地质通报, 2005,24(10-11):892-896.
[2]	Wang X Q . Conceptual model of deep-penetrating geochemical migration[J]. Geological Bulletin of China, 2005,24(10-11):892-896.
[3]	王学求, 张必敏, 叶荣 . 纳米地球化学与覆盖区矿产勘查[J]. 矿物岩石地球化学通报, 2016,35(1):43-51.
[3]	Wang X Q, Zhang B M, Ye R . Nanogeochemistry for mineral exploration through covers[J]. Bulletin of Mineralogy, Petrology, Petrology and Geochemistry, 2016,35(1):43-51.
[4]	姚文生, 王学求, 张必敏 , 等. 鄂尔多斯盆地砂岩型铀矿深穿透地球化学勘查方法实验[J]. 地学前缘, 2012,19(3):167-176.
[4]	Yao W S, Wang X Q, Zhang B M , et al. Pilot study of deep-penetrating geochemical exploration for sandstone type uranium deposit[J]. Earth Science Frontiers, 2012,19(3):167-176.
[5]	徐善法, 刘汉彬, 王玮 , 等. 深穿透地球化学方法在十红滩砂岩型铀矿中的试验研究[J]. 物探与化探, 2017,42(2):189-193.
[5]	Xu S F, Liu H B, Wang W , et al. An experimental study of deep penetration geochemical technology in the shihongtan uranium deposit[J]. Geophsicai and Geochemical Exploration, 2017,42(2):189-193.
[6]	Xie X J, Lu Y X, Yao W S , et al. Further Study on Deep Penetrating Geochemistry over the Spence Porphyry Copper Deposit, Chile[J]. Earth Science Frontiers, 2011,2(3):303-311.
[7]	文雪琴 . 金属活动态提取法及其在黑龙江大兴安岭森林覆盖区的应用[J]. 地球科学与环境学报, 2006,28(4):43-48.
[7]	Wen X Q . Application of selective of leaching mobile metal forms in forestry terrain,daxing’anling, heilongjiang[J]. Journal of Sciences and Environment, 2006,28(4):43-48.
[8]	姚文生 . 元素活动态提取剂机理及实验条件[D]. 北京:中国地质科学院, 2011: 24-36.
[8]	Yao W S . Leaching mechanism and conditions of extractants on mobile forms of elements in soils[D]. Beijing:Chinese Academy of Geological Science, 2011: 24-36.
[9]	王学求, 姚文生, 孙爱琴 , 等. 贱金属元素活动态的提取剂、制备方法及提取方法:中国,CN102787235A[P]. 2012.11.21.
[9]	Wang X Q, Yao W S, Sun A Q , et al. The extractant, preparation and leaching method of base mobile forms:China, CN102787235A[P]. 2012.11.21.
[10]	曹立峰, 王敏捷, 申硕果 , 等. 活动态提取—电感耦合等离子体质谱法测定栾川矿集区深穿透地球化学样品中铜铅锌钨钼[J]. 岩矿测试, 2015,34(4):424-429.
[10]	Cao L F, Wang M J, Sheng S G , et al. Determination of Cu, Pb, Zn, W and Mo in deep-penetrating geochemical samples of the lunchan ore concentrated district by ICP-MS with extraction elements of mobile forms[J]. Rock and Mineral Analysis, 2015,34(4):424-429.
[11]	藏吉良, 丁春霞, 尚宝忠 , 等. 深穿透地球化学样品中铜活动态提取条件研究与初步应用[J]. 岩矿测试, 2012,31(4):607-612.
[11]	Zhang J L, Ding C X, Shang B Z , et al. Leaching condition for the determination of mobile forms of copper in deep-penetrating geochemical samples and its preliminary application[J]. Rock and Mineral Analysis, 2012,31(4):607-612.
[12]	唐志中, 陈静, 孙自军 , 等. 深穿透地球化学样品中金活动态提取条件研究[J]. 黄金, 2013,34(6):71-74.
[12]	Tang Z Z, Chen J, Shun Z J , et al. Leaching conditions for determination of mobile forms gold in deep-penetrating geochemical samples[J]. Gold, 2013,34(6):71-74.
[13]	靳阿祥, 张艾蕊, 王晓康 , 等. 全反射X射线荧光光谱法测定水系沉积物中常量和微量元素[J]. 分析试验室, 2017,36(11):1294-1297.
[13]	Jin A X, Zhang A R, Wang X K , et al. Determination of macro-and micro-elements in stream sediment by total reflection X-ray fluorescence spectrometry[J]. Chinese Journal of Analysis Laboratory, 2017,36(11):1294-1297.
[14]	王谦, 郑琳, 任飞 , 等. 悬浮液进样-全反射X射线荧光光谱法测定膏霜类化妆品中的铅、砷和汞[J]. 分析化学, 2018,46(4):517-523.
[14]	Wang Q, Zheng L, Ren F , et al. Determination of Lead, arsenic and mercury in cream cosmetics by total reflection X-ray fluorescence spectrometry using suspension sampling[J]. Chinese Journal of Analysis Chemistry, 2018,46(4):517-523.
[15]	Pashkova G V, Aisueva T S, Finkelshtein A L , et al. Quantitative approaches to the determination of elements in lake sediments by total reflection X-ray fluorescence[J]. Microchemical Journal, 2018,143:264-271.
[16]	Bahadir Z, Torrent L, Hidalgo M . Simultaneous determination of silver and gold nanoparticles by cloud point extraction and total reflection X-ray fluorescence analysis[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2018,149:22-29.
[17]	Backes C A, McLaren R G, Rate A W , et al. Kinetics of Cadmium and Cobalt Desorption from Iron and Manganese Oxides[J]. Soil Sci. Soc. Am. J., 1995,59:778-785.
[18]	Sadeghia M, Albaneseb S, Morrisa G , et al. REE concentrations in agricultural soil in Sweden and Italy:Comparison of weak MMI^® extraction with near total extraction data[J]. Applied Geochemistry, 2015,63:22-36.
[19]	Sylvester G C, Mann A W, Cook S R , et al. MMI partial extraction geochemistry for the resolution of anthropogenic activities across the archaeological Roman town of Calleva Atrebatum[J]. Geochemistry: Exploration, Environment, Analysis, 2018: 58-74.

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