Optimasi Metoda CV-AAS untuk Analisis Raksa(II)

Mudji Triatmo Melkias Aloysius, Gunawan Gunawan


DOI: https://doi.org/10.14710/jgi.%25v.%25i.%25p

Abstract


Telah dilakukan optimasi metoda spektrometri serapan atom-uap dingin atau cold vapour-atomic absorption spectrometry (CV-AAS) untuk analisis raksa(II). Gas atom raksa(0) yang dihasilkan dari reduksi 50 mL raksa(II) 50 ppb dengan SnCl2 5% dalam lingkungan asam klorida, ditentukan respon analitiknya dengan kuat arus lampu katoda cekung 4 mA dan pada panjang gelombang 254,1 nm. Kondisi optimum yang diperoleh adalah volume SnCl2 5% sebanyak 1,5 mL; waktu pengadukan 2 menit; lingkungan asam 5 mL HCl 15% dan kecepatan pompa penghisap 0,3 L/menit.

Keywords


Raksa(Il); CV-AAS; reduksi

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References


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