Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Xác định đồng thời vanadi, niobi và tantali bằng sắc ký lỏng hiệu năng cao trang bị kỹ thuật làm giàu trực tuyến sử dụng 2-[2-(5-bromoquinolinylazo)]-5-diethylaminophenol làm chất tái tạo tiền bậc
Tóm tắt
Chất tạo chelate 2-[2-(5-bromoquinolinylazo)]-5-diethylaminophenol (5-Br-QADEAP) đã được tổng hợp. Một phương pháp đã được phát triển để xác định đồng thời vanadi, niobi và tantali dưới dạng chelate kim loại-5-Br-QADEAP bằng cách sử dụng sắc ký lỏng hiệu năng cao với cột nhanh kết hợp với kỹ thuật làm giàu trực tuyến. Vanadi, niobi và tantali được biến đổi tiền cột với 5-Br-QADEAP để tạo thành các chelate có màu. Các chelate được tách ra trên một cột phân tích nhanh 4.6 × 10 mm, 1.8 µm với pha rắn acetonitrile-nước (50:50, v/v) chứa đệm phosphate pH 4.5 và 0.01 mol L−1 citrate làm pha rửa. Các chelate đã được tách hoàn toàn trong vòng 2.5 phút. Giới hạn phát hiện (S/N = 3) của vanadi, niobi và tantali lần lượt là 1.6, 1.6 và 1.8 ng L−1. Phương pháp này đã được áp dụng để xác định vanadi, niobi và tantali trong thép hợp kim, nước và mẫu địa chất với kết quả tốt.
Từ khóa
#sắc ký lỏng hiệu năng cao #chelate #vanadi #niobi #tantali #làm giàu trực tuyếnTài liệu tham khảo
T H Green (1995) ArticleTitleSignificance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system Chem Geol 120 347 Occurrence Handle10.1016/0009-2541(94)00145-X Occurrence Handle1:CAS:528:DyaK2MXktFektb8%3D
F A Cotton G Wilkinson (1988) Advanced inorganic chemistry EditionNumber2 Wiley-Interscience New York 787
Van Nostrand’s Scientific Encyclopedia (1995) 8th edn. Van Nostrand Reinhold, New York, p 2178, pp 3025–3026
Q H Liu Y P Chen (1995) ArticleTitleAutoradiographic determination of vanadium, niobium and tantalum in the hard dental tissues of the Syrian golden hamster Spectrosc Spect Anal 15 99 Occurrence Handle1:CAS:528:DyaK28XmsVCnug%3D%3D
Y Chen Y Liu (1991) ArticleTitleLiquid anion-exchange separation of vanadium(V) and niobium(V) from succinate solution Chinese J Anal Chem 19 560 Occurrence Handle1:CAS:528:DyaK3MXlvFOiurc%3D
N Sen N K Roy A K Das (1989) ArticleTitleSpectrophotometric determination of vanadium and niobium: xylenol orange as a chromogenic reagent Ind J Technol 27 366 Occurrence Handle1:CAS:528:DyaK3cXhslWhs7Y%3D
G P B Chaudhury C K Ganguli N Sen (1987) ArticleTitleX-ray fluorescence determination of niobium and tantalum in geological materials X-ray Spectrom 16 123 Occurrence Handle10.1002/xrs.1300160306 Occurrence Handle1:CAS:528:DyaL2sXkvVyks7k%3D
A M E Balaes K Dixon G J Wall (1987) ArticleTitleApplication of X-Ray-fluorescence spectrometry to the analysis of Ta–Nb–Sn slags and associated by-products Appl Spectrosc 41 509 Occurrence Handle10.1366/0003702874448995 Occurrence Handle1:CAS:528:DyaL2sXhvVyju7s%3D
J G Sen-Gupta N B Bertrand (1995) ArticleTitleDirect ICP-MS determination of trace and ultratrace elements in geological materials after decomposition in a microwave oven. Part II. Quantitation of Ba, Cs, Ga, Hf, In, Mo, Nb, Pb, Rb, Sn, Sr, Ta and Tl Talanta 42 1947 Occurrence Handle10.1016/0039-9140(95)01673-2 Occurrence Handle1:CAS:528:DyaK28XktFyisQ%3D%3D
S M Eggins J D Woodhead L P J Kinsley G E Mortimer (1997) ArticleTitleA simple method for the precise determination of 40 trace elements in geological samples by ICPMS using enriched isotope internal standardization Chem Geol 134 311 Occurrence Handle10.1016/S0009-2541(96)00100-3 Occurrence Handle1:CAS:528:DyaK2sXns1SjtA%3D%3D
O N Grebneva I V Kubrakova T F Kudinova N M Kuzmin (1997) ArticleTitleDirect determination of trace elements in niobium, tantalum and their oxides by inductively coupled plasma atomic emission spectrometry after microwave dissolution Spectrochim Acta B 52B 1151 Occurrence Handle10.1016/S0584-8547(97)00017-7 Occurrence Handle1:CAS:528:DyaK2sXlvFCjsrc%3D
P R Chowdhury N K Roy A K Das (1995) ArticleTitleDetermination of trace elements in metals by atomic absorption spectrometry with introduction of solid samples into furnaces Atom Spectrosc 16 104
K Satyanarayana M A Nayeem (1993) ArticleTitleDirect atomic-absorption spectrometric analysis of geological materials Atom Spectrosc 14 180 Occurrence Handle1:CAS:528:DyaK2cXls12itbc%3D
R Goguel (1992) ArticleTitleGroup separation by solvent extraction from silicate rock matrix of Nb, Mo, Ta, and W at low levels for ICP-MS. Fresenius J Anal Chem 344 326 Occurrence Handle10.1007/BF00321842 Occurrence Handle1:CAS:528:DyaK3sXltFCjtA%3D%3D
N R Das S N Bhattacharyya (1982) ArticleTitleSeparation and determination of tantalum by 4-methyl-2-pentanone extraction J Radioanal Chem 68 75 Occurrence Handle10.1007/BF02517609 Occurrence Handle1:CAS:528:DyaL38XhtlCqtb8%3D
S Oszwaldowski (1995) ArticleTitleReversed-phase high-performance liquid chromatographic separation and determination of titanium, vanadium, niobium and tantalum ternary complexes with hydrogen peroxide and 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol Analyst 120 1751 Occurrence Handle10.1039/an9952001751 Occurrence Handle1:CAS:528:DyaK2MXmtlOktLo%3D
H Wang H S Zhang J K Cheng P H Qiu (1997) ArticleTitleDetermination of V(V), Nb(V) and Ta(V) with 2-(2-thiazolylazo)-5-diethylaminophenol by reversed-phase high performance liquid chromatography Microchem J 55 332 Occurrence Handle10.1006/mchj.1996.1313 Occurrence Handle1:CAS:528:DyaK2sXhvVymu7o%3D
M G Bagur D G Elvangelista M S Vinas (1996) ArticleTitleSimultaneous determination of vanadium and molybdenum as N-benzoyl-N-phenylhydroxamate complexes by combining solvent extraction and liquid chromatography J Chromatogr A 730 241 Occurrence Handle10.1016/0021-9673(95)00973-6
D L Li X Y Hu H Z Wang (2001) ArticleTitleDetermination of trace amounts of niobium in steel by reversed-phase high-performance liquid chromatography with methyl isobutyl ketone extraction and pre-column derivatization Anal Chim Acta 449 237 Occurrence Handle10.1016/S0003-2670(01)01342-3 Occurrence Handle1:CAS:528:DC%2BD3MXoslKgs7c%3D
M Y Khuhawar S N Lanjwani G Q Khaskhely (1995) ArticleTitleHigh-performance liquid chromatographic determination of vanadium in crude petroleum oils using bis(salicylaldehyde)tetramethylethylenediimine J Chromatogr A 689 39 Occurrence Handle10.1016/0021-9673(94)00613-E Occurrence Handle1:CAS:528:DyaK2MXjt1Srsrk%3D
N Vachirapatama P Doble P R Haddad (2000) ArticleTitleOn-line preconcentration of niobium(V) and tantalum(V) as 4-(2-pyridylazo) resorcinol–citrate ternary complexes in geological samples by ion interaction high-performance liquid chromatography J Chromatogr A 885 369 Occurrence Handle10.1016/S0021-9673(99)01159-0 Occurrence Handle1:CAS:528:DC%2BD3cXktlKmsrc%3D
H Wang H S Zhang J K Cheng (1995) ArticleTitleDetermination of V(V), Nb(V) and Ta(V) as their 2-(5-nitro-2-pyridylazo)-5-diethylaminophenol complexes by reversed-phase high performance liquid chromatography Fresenius J Anal Chem 351 683 Occurrence Handle10.1007/BF00323347 Occurrence Handle1:CAS:528:DyaK2MXlslalt74%3D
M Rehkamper (1994) ArticleTitleA new low-level HPLC technique for quantitative determination of niobium in rocks Chem Geol 113 61 Occurrence Handle10.1016/0009-2541(94)90005-1
X J Yang C Pin (2002) ArticleTitleDetermination of niobium, tantalum, zirconium and hafnium in geological materials by extraction chromatography and inductively coupled plasma mass spectrometry Anal Chim Acta 458 375 Occurrence Handle10.1016/S0003-2670(02)00076-4 Occurrence Handle1:CAS:528:DC%2BD38XjsVWisbw%3D
D L Li X Y Hu H Z Wang (2004) ArticleTitleSeparation and simultaneous determination of niobium and tantalum in steel by reversed-phase high-performance liquid chromatography using 2-(2-pyridylazo)-5-diethylamino phenol as a pre-column derivatizing reagent Talanta 63 233 Occurrence Handle10.1016/j.talanta.2003.09.028 Occurrence Handle1:CAS:528:DC%2BD2cXjsVCrt7s%3D
N Vachirapatama P Doble P R Haddad (2000) ArticleTitleSeparation and determination of niobium(V) and tantalum(V) as 2-(5-bromo-2-pyridylazo)-5-[N-propyl-N-(3-sulfopropyl)amino]phenol citrate ternary complexes in geological samples using ion interaction high-performance liquid chromatography Anal Chim Acta 409 35 Occurrence Handle10.1016/S0003-2670(99)00815-6 Occurrence Handle1:CAS:528:DC%2BD3cXhsFymsr4%3D
N Vachirapatama M Macka B Paull C Munker P R Haddad (1999) ArticleTitleDetermination of niobium(V) and tantalum(V) as 4-(2-pyridylazo)resorcinol-citrate ternary complexes in geological materials by ion-interaction reversed-phase high-performance liquid chromatography J Chromatogr A 850 257 Occurrence Handle10.1016/S0021-9673(99)00143-0 Occurrence Handle1:CAS:528:DyaK1MXltlGkurs%3D
Y E Zeng H S Zhang Z H Chen (1989) Handbook of modern chemical reagents (the forth fascicule, chromogenic agent of inorganic ion) Chinese Chemical Industry Press Beijing, P. R. China 785