MATEC Web Conf.
Volume 142, 2018International Conference on Materials Applications and Engineering 2017 (ICMAE2017)
|Number of page(s)||6|
|Section||Chemical Materials and Chemical Syntheses|
|Published online||08 January 2018|
Exploiting a Simple Method for the Determination of Manganese in Polyethylene Lined Tubing for Petroleum and Natural Gas Industries
State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and
Equipment Materials, No. 89 Jinyeer Road, Xi’an 710077, China
2 CNPC Tubular Goods Research Institute, No. 89 Jinyeer Road, Xi’an 710077, China
3 Engineering Institute of Technology, Sinopec Northwest Oilfield Branch, Urumqi 830011, China
* Corresponding author: firstname.lastname@example.org
The polyethylene lined tubing is the key to enabling the industry to meet some of the energy security challenges that nations face today. It is well known that manganese is an important element in polyethylene lined tubing. In this paper, a simple spectrophotometric method was described for the determination of manganese in polyethylene lined tubing. The method was based on the oxidation-reduction reaction between ammonium persulfate and manganese(II) producing manganese(VII) in the presence of silver nitrate as a catalyst. The characteristic wavelength of maximum absorption of manganese(VII) was obtained locating at 530 nm. Under the optimum reaction conditions the absorption value was proportional to the concentration of manganese in the range of 0.2%~1.9% (R2 = 0.9997), and the relative standard deviation was less than 3.0% (n=5). The proposed method was applied successfully to determine manganese in polyethylene lined tubing real samples.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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