• 분석과학
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• 제12권2호
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• pp.111-115
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• 1999

간접자외선흡광검출 이온크로마토그래피를 7가지 음이온($H_2PO_4^-$, $Cl^-$, $NO_2^-$, $NO_3^-$, $I^-$, $SO_4^{2-}$, $SCN^-$)분리에 적용하였다. 컬럼은 저용량의 강염기성 음이온 교환체를 가진 상용화된 TSK-guardgel QAE-SW (ca. 0.3 meq./g; 4.6 mm i.d${\times}$150 mm)를 사용하였다. 선택적이고 신속한 이온분리방법을 연구하기 위하여 naphthalene trisulfonic acid(NTS) 및 naphthalene disulfonic acid(NDS) 용리액에 대한 분리거동을 조사하였다. 더 나아가, 0.20 mM NTS 용리액에 5% 아세토리트릴을 첨가하여 음용수에 적용한 결과, 양이온과 음이온을 동시에 분리 할 수 있었다.

• 한국표면공학회지
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• 제39권1호
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• pp.13-17
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• 2006

The effects of an organic additive, naphthalene trisulfonic acid (NTSA), contained in the nickel sulfamate bath on the surface properties of the electrodeposited nickel layer were investigated through electrochemical technique, x-ray diffraction analysis, and microscopic observation. The addition of NTSA facilitated the oxidation process of electrodeposited nickel layer during anodic scan and also increased the hardness and internal stress of the nickel film as the applied current density became higher. It seems that NTSA modulated the deposit structure during electrodeposition and so induced higher distribution of (110) orientation with respect to (200). With the increase of the NTSA in the bath, nickel layer was formed in small grain size, which resulted in enhanced surface evenness and brightness.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2005년도 추계학술발표회 및 workshop
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• pp.139-139
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• 2005