动物激素检测报告(乳制品)
项目报告
1 样品信息Sample description
收到乳制品xx个,a和b
A total of xx dairy product samples, where received by the customer.
2 材料与方法Materials and Methods
2.1 试剂Chemicals
所有的溶剂与试剂均为色谱级,雌二醇,雌三醇,雌酮,睾酮,甲基睾酮,孕酮,己烯雌酚标准品购于xxx。
All chemicals and solvent were HPLC. Standard: estradiol, estriol, estrone, testosterone, methyl-testosterone, progesterone, diethylstilbestrol and were purchased from xxx.
2.2 样品处理Sample Preparation
1) 将样品摇匀,称取1.0g左右的样品;
2) 1.0g样品中分3次加入15 mL氢氧化钠溶液,混匀;
3) 加入100 mL xxx溶液,用1 mol/L盐酸溶液调pH至3.0;
4) 用30 mL xxx-xxx(40:1, V/V)混合液萃取3次,每次振荡2 min;
5) 合并萃取液,加入无水硫酸钠脱水,50℃水浴蒸干;
6) xxx用无水乙醇溶解并定容至10 mL,摇匀,并经0.45µm滤膜过滤,进样10 µL。
2.3 HPLC分析HPLC Analysis
本实验所用的仪器为Waters 2695型高效液相色谱仪,配备二极管阵列检测器。
色谱柱为XTerraTM RP18 (150 mm*4.6 mm, 5 μm),流动相为水-xxx-乙腈(50:32:18, V/V/V),流速为1.0 mL/min。
3 结果Results
色谱图Chromatogram