Full
Outline
After microwave digestion, Pb+2 in the sample was oxidized to Pb+4 by potassium ferricyanide. In the carrying current solution of hydrochloric acid (5+95), potassium borohydride was used as reducing agent and with the characteristics that gaseous hydrides can be produced by the reaction lead and potassium borohydride. The method of hydride generation-atomic fluorescence spectrometry for determining lead in iron containing dust was established. The detection limit of lead in iron containing dust was 0.091 9 μg/L, the upper limit was 0.5%, the relative standard deviation of iron ore standard sample and iron containing dust sample (n = 11) was less than 5.0%, and the standard recovery rate was 97%~104%. The method is fast and simple, which can be used for determining lead in iron containing dust.
45
8
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
