Determination of proximate composition, selected essential and heavy metals in sesame seeds (Sesamum indicum L.) from the Ethiopian markets and assessment of the associated health risks

对埃塞俄比亚市场上销售的芝麻（Sesamum indicum L.）进行成分分析，测定其中部分必需元素和重金属的含量，并评估其相关的健康风险。