A`λ"type capillary nebuliaer was designed and used in hydridn goneration-flame atomic absorption analysis. In this design, the upper end of capillary nebulizer was ccnnected to the sample entering capihary of the iusfrument spectroter,while one cf its lower end was dipped into the sample solution and the other end into the potassium borohydride solution. The uptimum conditions for determination were selected and of some 14 elements of fhe indicated amounts wverefouud no intarfereace. A procedure of trace amount of bismuth in the water system sediments has been developed. The detection limit waa 0.009 ppm Bi, the relative standard deviation was 3.6-19.9% for 0.31-4.4ppm Bi in 8standard samples(n=6).