土霉素具有广谱抗病原微生物作用，为快速抑菌剂，高浓度时对某些细菌呈杀菌作用。

名称	CAS号	英文名称	简称	母离子m/z	子离子m/z（a为定量子离子）	内标物
土霉素	2058-46-0	Oxytetracycline	OTC	461.1	426.4a/443.3	盐酸强力霉素-D3

标准曲线

y =0.91366 x + 1.48495 (r = 0.99969)

本底图谱

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
1	OTC_1	3.595e3	7.3	3.99	N/A	＜0

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
2	OTC_1	4.280e3	6.5	4.01	N/A	＜0

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
3	OTC_1	2.183e3	3.7	3.93	N/A	＜0

低标（加标100ng/L）图谱

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
4	OTC_1	2.375e6	5213.2	3.96	N/A	111.28

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
5	OTC_1	3.108e6	3840.9	3.96	N/A	91.00

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
6	OTC_1	2.911e6	6619.1	3.97	N/A	123.28

高标（加标100ng/L）图谱

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
7	OTC_1	6.276e6	13731.7	3.96	N/A	214.66

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
8	OTC_1	7.320e6	13802.4	3.96	N/A	206.36

Sample Name	Analyte Peak Name	Area (cps)	S/N	Analyte RT(min)	Target conc. ()	Calculated Concentration (ng/mL)
9	OTC_1	7.704e6	15292.5	3.96	N/A	176.64

低标加标回收率（范围 50%-200%）：108.52%

高标加标回收率（范围 50%-200%）：99.61%

低标精密度（3次重复标准偏差）：15.04%

高标精密度（3次重复标准偏差）：10.03%