²¹⁰Po and ²¹⁰Pb are commonly measured to study particle cycling and particulate organic carbon export (POC) flux from the upper ocean. ²¹⁰Bi is a potential oceanographic tracer. However, no convenient and rapid analytical method for ²¹⁰Bi has been developed in the marine environment due to its short half-life (5 days). The aims are to study factors influencing the simultaneous auto-plating of ²¹⁰Po and ²¹⁰Bi onto nickel disc and to develop an effective ship-board procedure for the rapid measurement of ²¹⁰Po, ²¹⁰Bi, and ²¹⁰ Pb at sea. The results suggest that the optimal conditions for auto-deposition of ²¹⁰Po and ²¹⁰Bi were achieved by using a 25 mm diameter nickel disc in 60 mL acidic solution (pH = 0.5) for 16 h at 25 ± 1 °C. By adding ²⁰⁹Po and ²⁰⁷Bi as yield tracers to the sediments, recoveries of Po and Bi were >90%. If ²¹⁰Po or ²¹⁰Bi were in equilibrium with ²¹⁰Pb, ²¹⁰Po and ²¹⁰Bi could also be potential proxies for ²¹⁰Pb in sedimentary chronology. The overall recoveries of ²⁰⁹Po and ²⁰⁷Bi were >70% for rainwaters and >60% for seawater samples, respectively, which indicates this analytical procedure is also applicable to marine and atmospheric environments. This method allows the rapid measurement of ²¹⁰Bi on a ship and help to obtain its vertical profile or spatial distribution in the marine environment within 1–2 days.

通常测量²¹⁰ Po和²¹⁰ Pb来研究来自上层海洋的颗粒循环和颗粒有机碳出口（POC）通量。²¹⁰ Bi是潜在的海洋示踪剂。但是，由于其半衰期短（5天），因此尚未在海洋环境中开发出方便快捷的²¹⁰ Bi分析方法。目的是研究影响²¹⁰ Po和²¹⁰ Bi同时自动电镀到镍片上的因素，并开发一种有效的船上程序，以在海上快速测量²¹⁰ Po，²¹⁰ Bi和²¹⁰ Pb。结果表明自动沉积的最佳条件通过在25±1°C的条件下，使用直径为25 mm的镍圆盘在60 mL酸性溶液（pH = 0.5）中放置16 h，可以达到²¹⁰ Po和²¹⁰ Bi。通过向沉积物中添加²⁰⁹ Po和²⁰⁷ Bi作为产量示踪剂，Po和Bi的回收率> 90％。如果²¹⁰ Po或²¹⁰ Bi与²¹⁰ Pb处于平衡状态，那么在沉积年代学中²¹⁰ Po和²¹⁰ Bi也可能是²¹⁰ Pb的潜在代表。²⁰⁹ Po和²⁰⁷的总回收率雨水的Bi分别> 70％，海水样品的Bi> 60％，这表明该分析程序也适用于海洋和大气环境。这种方法可以快速测量船上的²¹⁰ Bi，并在1-2天内获得其在海洋环境中的垂直剖面或空间分布。