พลเชี่ยว ฉ. Modification of Carbon Paste Electrode with Hemin/Polypyrrole for Nitrite Determination in Drinking Water. Progress in Applied Science and Technology, Thailand, v. 3, n. 2, p. 38–44, 2013. Disponível em: https://ph02.tci-thaijo.org/index.php/past/article/view/243232. Acesso em: 1 oct. 2026.