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| 浊点萃取-原子吸收光谱法测定水和花粉中痕量铜、铅、镉 |
| Cloud Point Extraction Atomic Absorption Spectrometry Determination of Trace Copper，Lead and Cadmium in Water and Pollen |
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| DOI： |
| 中文关键词: 铜 铅 镉 浊点萃取 原子吸收光谱法 水质 花粉 |
| 英文关键词: Copper Lead Cadmium Cloud point Atomic absorption spectrophotometry Water quality Pollen |
| 基金项目:国家自然科学青年基金资助项目（21307007） |
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| 中文摘要: |
| 以氢氧化钠为沉淀剂，依据Triton X-114的浊点现象分离沉淀，沉淀在浓盐酸作用下溶解，用原子吸收光谱法测定样品中痕量铜、铅、镉。通过试验优化测定条件，使该方法在0 mg/L～6.00 mg/L范围内线性良好，3种元素的方法检出限分别为0.028 μg/L、0.006 μg/L、0.028 μg/L。将该方法用于水样、花粉中痕量铜、铅、镉的测定，RSD为2.8%～7.9%，加标回收率为92.0%～106%。 |
| 英文摘要: |
| Based on cloud point phenomenon of Triton X 114 with NaOH as precipitant for extraction, a method was established in determination of trace copper, lead and cadmium by AAS. The measurement parameters were optimized through experiments. The linear range were 0 mg/L～6.00 mg/L，and the method detection limits of the 3 elements were 0.028 μg/L， 0.006 μg/L and 0.028 μg/L, respectively. Applying this method in trace copper, lead and cadmium determination of water and pollen samples, results showed good precision and accuracy with the RSD range of 2.8%～7.9% and the recovery range of 92.0%～106%. |
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