Xác định Kẽm, Đồng, Sắt và Mangan trong Các Vùng Khác Nhau của Não Cừu Non

Biological Trace Element Research - Tập 142 - Trang 492-499 - 2010
Sezgin Bakirdere1,2, Nese Kizilkan3, Mehmet Yaman4
1Chemistry Department, Zonguldak Karaelmas University, Zonguldak, Turkey
2Chemistry Department, Middle East Technical University, Ankara, Turkey
3Department of Anatomy, Gaziantep University, Gaziantep, Turkey
4Chemistry Department, Firat University, Elazig, Turkey

Tóm tắt

Mức độ kẽm, đồng, sắt và mangan đã được đo lường ở vùng hồi hải mã, đồi thị, hồi cinguli, vùng dưới đồi và trong các vỏ não trước trán, đỉnh, thái dương và chẩm của não cừu non bằng phương pháp quang phổ hấp thụ nguyên tử với ngọn lửa. Phương pháp bổ sung tiêu chuẩn cũng đã được áp dụng cho các mẫu và quan sát thấy rằng không có sự can thiệp nào từ ma trận ảnh hưởng đến việc xác định các nguyên tố quan tâm. Trong việc xác định Cu, một ống bẫy nguyên tử có khe đã được sử dụng để cải thiện độ nhạy. Phân tích phương sai một chiều đã được sử dụng để đánh giá thống kê kết quả cho từng nguyên tố. Kết quả giới hạn phát hiện cho Zn, Cu, Fe và Mn lần lượt được tìm thấy là 24, 4.5, 60 và 25 ng/mL. Các khác biệt theo vùng đã được tìm thấy cho tất cả các nguyên tố quan tâm. Nồng độ Mn dao động từ 0.29 ± 0.04 đến 0.61 ± 0.04 mg/kg được phát hiện là thấp nhất trong tất cả các vùng não giữa tất cả các nguyên tố quan tâm.

Từ khóa

#kẽm #đồng #sắt #mangan #não #phương pháp quang phổ hấp thụ nguyên tử

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