中国
岛津（上海）实验器材有限公司
[2H4]-Melatonin
[2H4]-Picolinic acid
乙腈中15种兽药混标，100μg／ml
[U-Ring-13C6]-3-hydroxykynurenine
![[2H4]-Melatonin](https://www.shimadzu-sglc.com/sites/default/files/productimg/50/5001/5001008/5001008012/C3724-1mg_01.jpg)
![[2H4]-Picolinic acid](https://www.shimadzu-sglc.com/sites/default/files/productimg/50/5001/5001008/5001008010/C8442-1mg_01.jpg)
![[U-Ring-13C6]-3-hydroxykynurenine](https://www.shimadzu-sglc.com/sites/default/files/productimg/50/5001/5001008/5001008006/C2727-1mg_01.jpg)