简述了流动注射原子光谱联用技术及其在矿冶分析中的应用。内容包括：流动注射与原子吸收光谱分析、ICP-AES 和ICP-MS联用系统及其在矿物、冶金分析领域中的应用及发展。引用文献61篇。

Volatile Au species in an acidified medium were generated at room temperature by reduction with NaBH4 in acidified aqueous medium using a flow-injection chemical vapor-generation atomic absorption spectrometric (FI-CVG-AAS) system in the presence of micro amounts of sodium diethyldithiocarbamate (DDTC). Precision of 2.0% RSD (n=11, 2.0mg L-1 level) was obtained at a sample throughput of 180h-1. A detection limit of 24ng mL-1 (3σ) was obtained with 300µL sample solution. The method was used for the determination of gold in ore sample digests, and the results obtained agreed well with those obtained by flame AAS.

Volatile species of Cu, Au and Tl were generated at room temperature by the reduction of NaBH4 in acidified aqueous medium using a flow injection vapor generation atomic absorption spectrometric (FI-VGAAS) system. 1, 10-phenanthroline, sodium diethanlydithiocarbonate (DDTC) and palladium (or combined with Rodamne B) ware used as enhancement reagents respectively. The normal flow injection peak shape wase obtained and the sensitivity were enhanced by 1-2 magnitude. The detection limits of 0.34-24ng/ml (3σ) were obtained with 300 or 500µl sample solution. The precision of 2.6-1.8% RSD were obtained with the sampling frequencies were of 120-180/h. The FI-VGAAS methods were used for the determination of copper in hair and rice sample and gold in the ore sample digests.

Volatile species of gold in acidified medium were generated at room temperature by the reduction of NaBH using 4 a flow injection vapor generation (FI-VG) system, and trapped in situ on the graphite furnace inner wall to get ETAAS detection. Reaction coil inner-wall and inside of the gas-liquid separator were conditioned by passing through a liquid containing micro amounts of Pd(II) and sodium diethyldithiocarbamate (DDTC) and NaBH. The FI manifold 4 design, the precondition of the FI-VG system and the effect of temperature parameters for ETAAS are discussed. Optimization of the FI and chemical parameters, such as effect of sample acidity, effect of sodium tetrahydroborate concentration, effects of the flow rates for sample, reagent and carrier gas, effects of HCl and DDTC concentration in rinsing solution were investigated. A detection limit of 0.8 ngyml (3s) was obtained with a 40 s trapping time and a sampling frequency of 50yh. The precision of 2.2% R.S.D. (ns11) was obtained at 50 ngyml level. The method was used for the determination of gold in ore sample digest solution. The recoveries of gold in ore sample digest dilute solution by spiking of 25 ngyml gold were 90-106%. The results obtained were in good agreement with those obtained from direct ETAAS.

A flow injection hydride generation atomic absorption spectrometric (FI-HGAAS) method was developed for the determination of thallium at the ng mL-1 levels. Palladium, an effective enhancement reagent, was added to the acidified sample solution. The presence of micro amounts of Rhodamine B increased the hydride generation efficiency further. The acidified sample solution containing palladium and Rhodamine B merged with the aqueous sodium tetrahydroborate solution at room temperature. The generated gaseous phase was separated in a gasexpanded gas-liquid separator and was led directly into a quartz tube atomizer at 1000℃ via the Ar carrier gas for detection by AAS.