Determination of Inorganic Anions and Melamine in Fertilizers by Ion Chromatography

Chen Liang, Miaomiao Zhang, Xiaojiao Wang, Yunli Yan and Pengfei Fu

Asian Agricultural Research, vol. 13, issue 08

Abstract: A chromatographic analysis method for determining inorganic anions and melamine in fertilizers was established using ion chromatography (IC). The fertilizer samples were extracted by ultrasonic method with 7 g/L trichloroacetic acid solution and centrifuged. The supernatant is purified by a solid phase extraction column. Then, the anions in the solution were purified using SH-AP-1 (250 mm×4.0 mm) as a separation column, and measured by a suppressed conductivity detector; the melamine in the solution was separated using SH-CC-4 (200 mm×4.0 mm) as a separation column and detected by a UV detector. The results show that the mass concentration of anions had a linear relationship with its peak area within a certain range, the linear correlation coefficient r of the standard curve was greater than 0.999, the recovery rate of spiked samples was 93.4%-104.4%, and the relative standard deviation (RSD) of the measured value (n = 6) was less than 4%. Thus, this method is widely suitable for detection of anions and cations in a variety of fertilizer samples.

Keywords: Agribusiness (search for similar items in EconPapers)
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/317690/files/D ... 20Chromatography.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:asagre:317690

DOI: 10.22004/ag.econ.317690

Access Statistics for this article

More articles in Asian Agricultural Research from USA-China Science and Culture Media Corporation
Bibliographic data for series maintained by AgEcon Search ().