Anoxybacillussp. SO B1–Immobilized Amberlite XAD-16 for Solid-Phase Preconcentration of Cu(II) and Pb(II) and Their Determinations by Flame Atomic Absorption Spectrometry

Abstract

A new method for the determination of Cu(II) and Pb(II) by flame atomic absorption spectrometry (FAAS) after preconcentrating on a column containing Anoxybacillus sp. SO B1-immobilized Amberlite XAD-16 was developed. The functional groups of Anoxybacillus sp. SO B1 immobilized on Amberlite XAD-16 were characterized in KBr tablets by Fourier transform infrared (FT-IR) spectrometry. Various parameters such as pH, amount of the adsorbent, eluent type and volume, and flow rate of the sample solution were studied. The optimum pH values of quantitative sorption for Cu(II) and Pb(II) were found to be pH 7.0 and 5.0 and Cu(II) and Pb(II) ions could be quantitatively eluted with 5.0 ml of 1.0 mol L ¡1 HCI and 10.0 ml of 0.25 mol L ¡1 HNO 3 , respectively. Recoveries of Cu(II) and Pb(II) were found to be 100.9 § 1.57% and 100.3 § 0.49% (N D 5), the limits of detection of Cu(II) and Pb(II) in the determination by FAAS (3 s, N D 10) were found to be 0.8 and 1.6 mg L ¡1 , respectively. The proposed enrichment method was applied for metal ion determination from water samples such as two parts of Tigris River water in Diyarbakır and Elazı g, Lake of Hazar in Elazı g, and tap water in Diyarbakır. Furthermore, the accuracy of the proposed method was verified by studying the analytical recovery and by analyzing certified reference material (NCS-DC 73350 leaves of poplar).

Extraction Procedures for Hair Forensic Toxicological Analysis: A Mini-Review

“…If the sorbent is chosen carefully, the analyte is adsorbed in the column. The next step is removing the analyte from the column, applying an appropriate solvent which elutes the analyte to the liquid phase. , …”

“…The next step is removing the analyte from the column, applying an appropriate solvent which elutes the analyte to the liquid phase. 103,104 SPE is used to separate different analytes from hair, such as drugs of abuse, xenobiotics, and metals. This procedure requires a primary extraction to release the analytes for the liquid phase which is then applied to the SPE column.…”

Supramolecular microextraction of cobalt from water samples before its microsampling flame atomic absorption spectrometric detection

“…The matrix effects problems sourced from alkaline metals, earth alkaline metals, transition metals and some anions in the atomic absorption spectrometric determination of trace cobalt in water samples are an important problem [19][20][21][22][23][24][25][26][27]. Owing to this factor, it is important to evaluate the effectiveness of the procedure in the presence of different matrix ions.…”

Eskişehir Bastnasit Cevherinde Bulunan Lantanın Zenginleştirilmesi

“…Cevher içeriğinde yer alan lantan ve nadir toprak elementlerinin etkili bir şekilde ayrılması için gerçekleştirilen araştırmalarda, asit liçi [10][11][12] ve flotasyon [13][14][15][16] gibi farklı teknikler uygulanmış, fakat lantanın zenginleştirilmesi istenilen seviyede gerçekleştirilememiştir. Çözelti içerisinde yer alan lantanın ve nadir toprak elementlerinin seçici ve etkin bir şekilde ayrılmasına yönelik olarak adsorpsiyon-biyosorpsiyon [17][18][19][20][21][22] ve ekstraksiyon [23][24][25][26][27][28][29][30][31][32]…”