色谱
色譜
색보
CHINESE JOURNAL OF CHROMATOGRAPHY
2014年
8期
817-821
,共5页
固相萃取%羧基化多壁碳纳米管%四溴双酚 A%双酚 A%环境水
固相萃取%羧基化多壁碳納米管%四溴雙酚 A%雙酚 A%環境水
고상췌취%최기화다벽탄납미관%사추쌍분 A%쌍분 A%배경수
solid-phase extraction( SPE)%carboxyl-functionalized multiwalled carbon nano-tubes%tetrabromobisphenol A%bisphenol A%environmental water
建立了羧基化碳纳米管固相萃取-液相色谱-串联质谱联用检测环境水体中四溴双酚 A 和双酚 A 的方法。比较了多壁碳纳米管、C60和羧基化多壁碳纳米管作为固相吸附剂对水体中四溴双酚 A 和双酚 A 的吸附效率。固相萃取浓缩后的样品经 Thermo Scientific Hypersil C18色谱柱（150 mm×4.6 mm，3μm）分离，采用串联质谱负离子模式进行检测。结果表明，四溴双酚 A 和双酚 A 在0.02~1.0 mg / L 范围内具有良好的线性关系（ r2≥0.99），空白样品中的检出限（S / N =3）分别为0.04μg / L 和0.2μg / L。将所建立的方法应用于实际环境水体中四溴双酚 A和双酚 A 的检测，添加回收率在82％~99％之间，精密度小于5.0％，该方法可用于复杂环境样品中痕量四溴双酚 A和双酚 A 的检测。
建立瞭羧基化碳納米管固相萃取-液相色譜-串聯質譜聯用檢測環境水體中四溴雙酚 A 和雙酚 A 的方法。比較瞭多壁碳納米管、C60和羧基化多壁碳納米管作為固相吸附劑對水體中四溴雙酚 A 和雙酚 A 的吸附效率。固相萃取濃縮後的樣品經 Thermo Scientific Hypersil C18色譜柱（150 mm×4.6 mm，3μm）分離，採用串聯質譜負離子模式進行檢測。結果錶明，四溴雙酚 A 和雙酚 A 在0.02~1.0 mg / L 範圍內具有良好的線性關繫（ r2≥0.99），空白樣品中的檢齣限（S / N =3）分彆為0.04μg / L 和0.2μg / L。將所建立的方法應用于實際環境水體中四溴雙酚 A和雙酚 A 的檢測，添加迴收率在82％~99％之間，精密度小于5.0％，該方法可用于複雜環境樣品中痕量四溴雙酚 A和雙酚 A 的檢測。
건립료최기화탄납미관고상췌취-액상색보-천련질보련용검측배경수체중사추쌍분 A 화쌍분 A 적방법。비교료다벽탄납미관、C60화최기화다벽탄납미관작위고상흡부제대수체중사추쌍분 A 화쌍분 A 적흡부효솔。고상췌취농축후적양품경 Thermo Scientific Hypersil C18색보주（150 mm×4.6 mm，3μm）분리，채용천련질보부리자모식진행검측。결과표명，사추쌍분 A 화쌍분 A 재0.02~1.0 mg / L 범위내구유량호적선성관계（ r2≥0.99），공백양품중적검출한（S / N =3）분별위0.04μg / L 화0.2μg / L。장소건립적방법응용우실제배경수체중사추쌍분 A화쌍분 A 적검측，첨가회수솔재82％~99％지간，정밀도소우5.0％，해방법가용우복잡배경양품중흔량사추쌍분 A화쌍분 A 적검측。
A method for the determination of tetrabromobisphenol A and bisphenol A in environ-mental water using carboxyl-functionalized multiwalled carbon nanotubes as solid-phase extraction sorbent and liquid chromatography-tandem mass spectrometry was established. Com-parison of three nanomaterials including multiwalled carbon nanotubes,C60 and carboxyl-func-tionalized multiwalled carbon nanotubes used as solid-phase extraction sorbents was made. After preconcentration by solid-phase extraction,tetrabromobisphenol A and bisphenol A were separa-ted on a Thermo Scientific Hypersil C18 column(150 mm×4. 6 mm,3 μm)and then detected by tandem mass spectrometry in negative electrospray ionization(ESI)mode. The results showed a good linear response in the concentration range of 0. 02-1. 0 mg / L for tetrabromobisphenol A and bisphenol A,and the limits of detection(S / N = 3)were 0. 04 μg / L and 0. 2 μg / L for tetrabromo-bisphenol A and bisphenol A,respectively. The application of the proposed approach has been carried out for the determination of tetrabromobisphenol A and bisphenol A in spiked lake water and sea water samples. The recoveries varied from 82% to 99% with the relative standard devia-tions below 5. 0%. The proposed method can be used for the determination of tetrabromobisphe-nol A and bisphenol A at trace level in complex environmental samples.
