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| 济南市重点水域硅藻检验研究 |
| Study of Diatoms Test in Key Water bodies in Jinan |
| 投稿时间：2024-10-20 修订日期：2025-09-28 |
| DOI： |
| 中文关键词: 溺死;硅藻检验;滤膜富集;真空抽滤;扫描电镜 |
| 英文关键词: drowning; diatom detection; filter membrane enrichment; vacuum filtration; scanning electron microscope |
| 基金项目:山东省重点研发计划（重大科技创新工程）项目（项目编号：2021CXGC011305） |
| 作者 | 单位 | 邮编 | | 孙来晶* | 山东警察学院刑事科学技术学院 山济南 | 250200 | | 尹旭晨 | 德州市公安局德城分局刑侦大队 山东德州 | | | 张磊磊 | 山东省公安厅物证鉴定中心 | |
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| 中文摘要: |
| 目的 探究济南市重点水域硅藻分布特征，为确定是否溺死及溺死地点提供参考。方法 采集济南市几处重点水域的水样，运用基于滤膜富集的真空抽滤技术与扫描电镜联用的方法对水样进行检测，得出硅藻特征数据。结果 小清河水域检见硅藻平均含量和硅藻种属数量最多，分别为26805个/50ml和19种；黄河水域检见硅藻平均含量和硅藻种属数量最少，分别为24个/50ml和4种；小环藻属为大多数水域的优势属，其它水域优势属还有舟形藻属、菱形藻属、针杆藻属、曲壳藻属和海链藻属。结论 济南市重点水域硅藻特征有较大差异，可为侦查办案提供一定参考。 |
| 英文摘要: |
| ABSTRACT: Objective To explore the distribution characteristics of diatoms in key water bodies of Jinan, providing reference for determining whether death by drowning and the location of drowning. Methods Water samples were collected from several key water bodies in Jinan. The samples were tested using a method combining vacuum filtration technology based on filter membrane enrichment with scanning electron microscopy, resulting in diatom characteristic data. Results The Xiaoqing River water body exhibited the highest average diatom density and the richest diatom genera, with 26,805 cells/50ml and 19 genera, respectively. In contrast, the Yellow River water body showed the lowest values, with only 24 cells/50ml and 4 genera. Cyclotella was the dominant genus in most water bodies, while other dominant genera included Navicula, Nitzschia, Synedra, Achnanthes and Thalassiosira. Conclusion The diatom characteristics in key water bodies of Jinan show significant differences, which can provide certain references for investigative work. |
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