化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2015年
1期
80-82
,共3页
邵秋荣%丁晓%邵劲勤%方邢有
邵鞦榮%丁曉%邵勁勤%方邢有
소추영%정효%소경근%방형유
ABS%SAN%塑料%残留单体%丙烯腈%苯乙烯%气相色谱-质谱法
ABS%SAN%塑料%殘留單體%丙烯腈%苯乙烯%氣相色譜-質譜法
ABS%SAN%소료%잔류단체%병희정%분을희%기상색보-질보법
ABS%SAN%plastic%residual monomer%acrylonitrile%styrene%gas chromatography-mass spectrometry
建立了气相色谱–质谱法同时测定ABS(丙烯腈–丁二烯–苯乙烯)及SAN(苯乙烯–丙烯腈共聚物)塑料中2种残留单体丙烯腈和苯乙烯的方法。用N，N-二甲基甲酰胺(DMF)萃取，用甲醇将高聚物进行沉淀，分离后取上清液进样分析。丙烯腈及苯乙烯的线性范围为1～500 mg／L，相关系数分别为0.9597和0.9929。加标回收率为82.3%～102.2％，测定结果的相对标准偏差为0.74%～2.67%(n=6)，检出限(S／N=3)为1.0 mg／kg。该方法灵敏度、准确度高，适合于ABS和SAN中丙烯腈和苯乙烯的检测。
建立瞭氣相色譜–質譜法同時測定ABS(丙烯腈–丁二烯–苯乙烯)及SAN(苯乙烯–丙烯腈共聚物)塑料中2種殘留單體丙烯腈和苯乙烯的方法。用N，N-二甲基甲酰胺(DMF)萃取，用甲醇將高聚物進行沉澱，分離後取上清液進樣分析。丙烯腈及苯乙烯的線性範圍為1～500 mg／L，相關繫數分彆為0.9597和0.9929。加標迴收率為82.3%～102.2％，測定結果的相對標準偏差為0.74%～2.67%(n=6)，檢齣限(S／N=3)為1.0 mg／kg。該方法靈敏度、準確度高，適閤于ABS和SAN中丙烯腈和苯乙烯的檢測。
건립료기상색보–질보법동시측정ABS(병희정–정이희–분을희)급SAN(분을희–병희정공취물)소료중2충잔류단체병희정화분을희적방법。용N，N-이갑기갑선알(DMF)췌취，용갑순장고취물진행침정，분리후취상청액진양분석。병희정급분을희적선성범위위1～500 mg／L，상관계수분별위0.9597화0.9929。가표회수솔위82.3%～102.2％，측정결과적상대표준편차위0.74%～2.67%(n=6)，검출한(S／N=3)위1.0 mg／kg。해방법령민도、준학도고，괄합우ABS화SAN중병희정화분을희적검측。
A method was established for the determiantion of residual acrylonitrile and styrene monomer in ABS (acrylonitrile-butadiene-styrene) and SAN (acrylonitrile-styrene) by gas chromatography–mass specrometry. The plastic sample was firstly dissolved by N,N-dimethylformamide, then methanol was added to precipitate the polymer and the supernatant was separated and detected. The linear range of acrylonitrile and styrene was 1.0–500 mg/L,the correlation coefficient were 0.959 7, 0.992 9, respectively. The recoveries ranged from 82.3% to 102.2% with the relative standard deviation of 0.74%–2.67%(n=6) and the detection limit (S/N=3) was 1.0 mg/kg. This method is sensitive and accurate, it is suitable for the detection of acrylonitrile and styrene in ABS and SAN.
