TETRAETHYLAMMON BROMIDE R 500G

Tin

Potassium dihydrogen orthophos

Marble chips

Orange G sodium salt

Potassium Carbonate

Lactose monohydrate

Ammonium iron(III) sulfate

Methyl Salicylate

磺胺甲基异噁唑-13C6标准溶液, Sulfamethoxazole-13C6 Standard solution

直接红28标准溶液, Direct Red 28 Standard solution