福建分析测试
福建分析測試
복건분석측시
FUJIAN ANALYSIS & TESTING
2014年
3期
1-4
,共4页
磷酸盐%离子色谱法%鱼糜制品
燐痠鹽%離子色譜法%魚糜製品
린산염%리자색보법%어미제품
Phosphates%ion chromatography%surimi products
建立了离子色谱法测定鱼糜制品中磷酸盐、焦磷酸盐、三聚磷酸盐及偏磷酸盐的测定方法。样品经超声离心后以三氟乙酸为蛋白沉淀剂，再次离心后经MCX小柱净化，采用淋洗液自动发生装置在线产生不同浓度的KOH进行梯度洗脱。四种磷酸盐在0.5 mg/L-100 mg/L的浓度范围内线性关系良好。样品中目标物的加标回收率为80.5%-116.1%，RSD为1.1%-9.5%。该方法前处理简单，重现性好，能满足鱼糜制品中多种磷酸盐的测定。
建立瞭離子色譜法測定魚糜製品中燐痠鹽、焦燐痠鹽、三聚燐痠鹽及偏燐痠鹽的測定方法。樣品經超聲離心後以三氟乙痠為蛋白沉澱劑，再次離心後經MCX小柱淨化，採用淋洗液自動髮生裝置在線產生不同濃度的KOH進行梯度洗脫。四種燐痠鹽在0.5 mg/L-100 mg/L的濃度範圍內線性關繫良好。樣品中目標物的加標迴收率為80.5%-116.1%，RSD為1.1%-9.5%。該方法前處理簡單，重現性好，能滿足魚糜製品中多種燐痠鹽的測定。
건립료리자색보법측정어미제품중린산염、초린산염、삼취린산염급편린산염적측정방법。양품경초성리심후이삼불을산위단백침정제，재차리심후경MCX소주정화，채용림세액자동발생장치재선산생불동농도적KOH진행제도세탈。사충린산염재0.5 mg/L-100 mg/L적농도범위내선성관계량호。양품중목표물적가표회수솔위80.5%-116.1%，RSD위1.1%-9.5%。해방법전처리간단，중현성호，능만족어미제품중다충린산염적측정。
A method for the determination of phosphate ,pyrophosphate,tripolyphosphate and metaphosphate in surimi products by ion chromatography was developed. The samples were prepared through ultrasonic extraction, centrifugation, deposition, purification before analysis. Different concentrations of KOH produced by an online auto generator could achieve a flat baseline and lower background. Good linear relationships of phosphates were found within 0.5 mg/L-100 mg/L. The recoveries of phosphates were between 80.5%-116.1%with RSD between 1.1%-9.5%. The method was suitable for the determination of phosphates in surimi with easy preparation and good reproducibility.
