您好,欢迎访问三七文档
当前位置:首页 > 商业/管理/HR > 公司方案 > 高效液相色谱紫外检测法测定饲料中N氨甲酰谷氨酸的含量李裕
201617DOI:10.15906/j.cnki.cn11-2975/s.20161711N-(,410006)N-N-,--5-,。,、(Wu,2004)。N-1/10(,2012)。N-。N-(,2015;,2014)。,、,、,。,,。,、,。,,N-。11.1Waters26952489、2998(Waters);Delta320pH(-);OASISMAX(150mg,6cc,Waters)。1.2N-(≥98%,Sigma);(,Merck);(,)。N-:N-102mg100mL,,,。1.0mg/mL。N-:,:[]N-。。-0.05%(V/V,5∶95),C18,215nm。,1.5~500μg/mL,R2=1,88.6%~101.2%,0.69%~2.31%(n=5),0.075mg/g。N-。[];N-;[]S816.17[]A[]1004-3314(2016)17-0041-03[Abstract]Ahighperformanceliquidchromatography(HPLC)methodwasdevelopedforthequantitationofN-car-bamylglutamateinfeed.Samplewasextractedwithwater,andpurifiedbyanionexchangeSPEcartridge.TheHPLCsepara-tionwasachievedonaC18columnusingamobilephaseofmethanoland0.05%phosphoricacidaqueoussolution(V∶V=5∶95).TheUVdetectorwasoperatedat215nm.Themethodprovidedgoodlinearityfrom1.5μg/mLto500μg/mL(R2=1).Therecoverieswereintherangeof88.6%~101.2%andtherelativestandarddeviations(RSDs)wereintherangeof0.69%~2.31%(n=5).Thequantificationlimitwas0.075mg/g.Itwasasimple,rapidandreliablemethodforthedetermi-nationofN-carbamylglutamateinfeed.[Keywords]feed;N-carbamylglutamate;highperformanceliquidchromatography41201617241N-AU0.0350.0300.0250.0200.0150.0100.0050.000-0.005/min0.001.002.003.004.005.006.007.008.009.0010.000.0120.0100.0080.0060.0040.0020.000-0.002AU/min0.001.002.003.004.005.006.007.008.009.0010.00-0.0043N-0.0120.0100.0080.0060.0040.0020.000-0.002AU/min0.001.002.003.004.005.006.007.008.009.0010.00-0.0040.0140.0120.0100.0080.0060.0040.0020.000AU/min0.002.004.006.008.0010.0012.0014.005N-0.0120.0100.0080.0060.0040.0020.000AU/min0.002.004.006.008.0010.0012.0014.001.5、5.0、10.0、25.0、50.0、100.0、250.0、500.0μg/mL。1.31.3.10.2g100mL,70mL,,10min,,,。,0.22μm,。1.3.21g100mL,70mL,,10min,,,。,5%pH≥6.5(pH6.5)。1.3.3OASISMAX5mL,5mL,2mL,1mL/min;3mL5%,;3mL,;6mL2%10mL。65℃。,1mL,0.22μm,。1.4:lunaC18(5μm,250mm×4.6mm);:-0.05%(V/V,5∶95)。:0.7mL/min;:20μL;:30℃;:215nm。1.51.5、5.0、10.0、25.0、50.0、100.0、250.0、500.0μg/mL,,,,。1.631.00g,,,10,。1.71.7.1N-5%、10%、20%。5,1.3.1。、(RSD)。1.7.2,,0.05%、0.1%、0.2%。5,1.3.2。、(RSD)。22.11~5。N-,。2.2y=0.0005x-0.6556,R2=1。1.5~500μg/mL42201617。N-0.075mg/g(0.0075%)。2.3N-5%、10%、20%,101.2%(RSD=0.81%)、100.5%(RSD=0.76%)、99.7%(RSD=0.69%)。N-0.05%、0.1%、0.2%,88.6%(RSD=2.31%)、90.4%(RSD=1.96%)、92.3%(RSD=1.89%)。33.1N-N-。C18。,,。C18,COO-Si-Oδ-Hδ+,。0.001%~0.1%。、,0.05%。,,。。5%,,7~12min,。3.2N-,205~190nm。235~210nm,。、200、205nm。,215nm。3.3N-、,。、。,,、。,。3.4。,pH。,N-,,pH。N-(200μg/mL),pH5.2N-。N-(10μg/mL),pH6.5N-。3.5N-。、、、。,65%、25%、5%、5%。。N-。3.6、N-40%~80%。,。5%、10%、20%。N-0.09%~0.2%(,2012;,2011)。0.05%、0.1%、0.2%。4、N-。、、N-,,,。[1],,,.N-[J].,2012,39(10):137~139.[2],,,.HPLC-ESI-MS/MSN-[J].,2015,36(5):22~23.[3],.、[J]..2011,38(8):23~26.[4],,,.—N--L-[J].,2014,32(2):184~188.[5]WuG,KnabeDA,KimSW.Argininenutritioninneonatalpigs[J].TheJournalofNutrition,2004,134(10):2783~2790.■43
本文标题:高效液相色谱紫外检测法测定饲料中N氨甲酰谷氨酸的含量李裕
链接地址:https://www.777doc.com/doc-6564167 .html