Abstract

This article presents the results of studies of the content of heavy metals (zinc, copper, lead, cadmium, and nickel) in the muscles and liver of the main commercial fish of different levels of the trophic chain, e.g., pike, perch, roach, and bream, caught in the Astrakhan region, Chernoyarsk district in the water of the Volga River. The distribution of metals in the body of hydrobionts is uneven and depends on the properties of the metal itself and the functional characteristics of the organs. It was found that the content of these metals in the Volga water and the muscles of hydrobionts does not exceed the maximum permissible concentration. The goal of our work was to determine the content of heavy metals in the tissues (muscles) and organs (liver) of the most important commercial fish of the Volga basin within the Astrakhan region (Chernoyarsk region) and to assess the safety of their use as food raw materials. For the research, water samples were taken according to GOST 31861-2012. The content of heavy metals in water was determined via inversion voltammetry on a TA-2M analyzer and in the muscle tissue and liver via atomic absorption spectrometry on a Quant-2A instrument. The highest concentration of heavy metals, 0.14–39.6 mg/kg, is found in the internal organs (liver), and the lowest concentration, 0.038–8.13 mg/kg, is found per unit mass of muscle tissue.

中文翻译：

---

下伏尔加河豚动物主要代表的组织和器官中的Zn，Cu，Pb，Cd和Ni水平

摘要

本文介绍了研究不同营养级别的主要商业鱼类（如梭鱼，鲈鱼，蟑螂）的肌肉和肝脏中重金属（锌，铜，铅，镉和镍）的含量的研究结果和鱼，在伏尔加河的水中被困在切尔诺亚尔斯克地区的阿斯特拉罕地区。金属在水溶生物体内的分布不均匀，取决于金属本身的特性和器官的功能特性。发现伏尔加河水和水溶生物的肌肉中这些金属的含量不超过最大允许浓度。我们工作的目的是确定阿斯特拉罕地区（切尔诺亚尔斯克地区）伏尔加河盆地最重要的商品鱼的组织（肌肉）和器官（肝脏）中的重金属含量，并评估其使用安全性作为食品原料。为了进行研究，根据GOST 31861-2012抽取了水样。水中的重金属含量通过TA-2M分析仪上的反向伏安法测定，肌肉组织和肝脏中的Quant-2A仪器上的原子吸收光谱法测定。在每单位肌肉组织中，内脏（肝脏）的重金属含量最高，为0.14–39.6 mg / kg，而最低含量为0.038–8.13 mg / kg。根据GOST 31861-2012抽取水样。水中的重金属含量通过TA-2M分析仪上的反向伏安法测定，肌肉组织和肝脏中的Quant-2A仪器上的原子吸收光谱法测定。在每单位肌肉组织中，内脏（肝脏）的重金属含量最高，为0.14–39.6 mg / kg，而最低含量为0.038–8.13 mg / kg。根据GOST 31861-2012抽取水样。水中的重金属含量通过TA-2M分析仪上的反向伏安法测定，肌肉组织和肝脏中的Quant-2A仪器上的原子吸收光谱法测定。在每单位肌肉组织中，内脏（肝脏）的重金属含量最高，为0.14–39.6 mg / kg，而最低含量为0.038–8.13 mg / kg。