Atomic absorption determination of tin using in situ concentration of stannane in a graphite furnace

Determination of butyltin compounds by high-performance liquid chromatography-hydride generation-electrothermal atomization atomic absorption spectrometry

“…As can be seen, blank absorbance value as well as its standard deviation relative to inorganic tin are lower than those reported for organotin species. The estimated detection limit for inorganic tin (48 pg) falls in the same range as those obtained with analogous methods (37-75 pg), [24][25][26][27][28][29] while higher values were obtained for butyltin compounds. Moreover, their sensitivity decreases with the increasing numbers of butyl groups.…”

“…Hydride generation (HG) followed by in-situ trapping within the graphite furnace provides an elegant way to separate the hydride-forming analytes from the matrix as well as to concentrate them into the atomizer. 23 This technique, which couples HG with ETAAS, was successfully applied to ultratrace determination of both inorganic tin [24][25][26][27][28][29] and tributyltin. 29 Pd-treated platforms or tubes were generally used to collect the hydrides, [24][25][26][27] even if in-situ trapping on stable coatings, such as Zr, Nb, W, has also been reported.…”

“…23 This technique, which couples HG with ETAAS, was successfully applied to ultratrace determination of both inorganic tin [24][25][26][27][28][29] and tributyltin. 29 Pd-treated platforms or tubes were generally used to collect the hydrides, [24][25][26][27] even if in-situ trapping on stable coatings, such as Zr, Nb, W, has also been reported. 28,29 In this paper a new ultrasensitive method is presented for organotin speciation, based on interfacing HPLC with ETAAS by hydride generation-in-situ trapping on a Pd-treated platform.…”

Atomic absorption determination of lead at picogram per gram levels by ethylation with in-situ concentration in a graphite furnace

“…Although the possibilities of Pb2+ contamination * Author to whom all correspondence should be addressed. are much greater than for the alkyllead species, its ease of ethylation and the absence of significant sample manipulation make this approach attractive for coupling with in situ concentration and atomization procedures using a graphite furnace (15)(16)(17)(18)(19). The latter offers substantial advantages over conventional purge and trap methodologies with furnace or heated quartz cell detection systems including simplicity of operation and use of small sample volumes, high sensitivity, and a substantial increase in detection power.…”

Metals in River Water

“…Sturgeon et al 822 combined hydride generation with electrothermal atomic absorption spectrophotometry for the determination of tin in natural waters. Stannane is generated with sodium borohydride and is trapped on a preheated graphite tube.…”