TY - JOUR
T1 - Separation of 4-(2-pyridylazo)resorcinolato metal chelates by micellar electrokinetic capillary chromatography
AU - Saitoh, Tohru
AU - Hoshino, Hitoshi
AU - Yotsuyanagi, Takao
N1 - Funding Information:
This work was financially supportedi n part by a Grant-in-Aid for Science Research( No. 62850137fr)o m theM inistry of Education,S ciencea ndC ulture,J apan (1987/1988).
PY - 1989
Y1 - 1989
N2 - The first application of micellar electrokinetic capillary chromatography to the separation of metal chelate compounds is demonstrated. The resolution of the peaks of 4-(2-pyridylazo)resorcinolato (par) chealates is excellent on a 60 cm × 0.05 mm I.D. silica capillary filled with a 0.02 mol dm-3 sodium dodecylsulphate micellar eluent at an applied voltage of 16.5 kV (driving current 12 μA). The theoretical plate number for the chelates reaches to more than 1 · 105 per 60 cm. The elution behaviour is discussed in terms of electrokinetic and micellar partition characteristics of the metal-par chelates. The chromatographic system is highly promising for the ultratrae detemination of metals at the femtomole level in a very small sample injection volume (ca. 6 nl).
AB - The first application of micellar electrokinetic capillary chromatography to the separation of metal chelate compounds is demonstrated. The resolution of the peaks of 4-(2-pyridylazo)resorcinolato (par) chealates is excellent on a 60 cm × 0.05 mm I.D. silica capillary filled with a 0.02 mol dm-3 sodium dodecylsulphate micellar eluent at an applied voltage of 16.5 kV (driving current 12 μA). The theoretical plate number for the chelates reaches to more than 1 · 105 per 60 cm. The elution behaviour is discussed in terms of electrokinetic and micellar partition characteristics of the metal-par chelates. The chromatographic system is highly promising for the ultratrae detemination of metals at the femtomole level in a very small sample injection volume (ca. 6 nl).
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U2 - 10.1016/S0021-9673(01)96452-0
DO - 10.1016/S0021-9673(01)96452-0
M3 - Article
AN - SCOPUS:0024412075
VL - 469
SP - 175
EP - 181
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
IS - C
ER -