CAJ | 학술논문

在过量的I-存在的稀盐酸介质中,当有IO3-存在时,IO3-与过量的I反应生成I3-,I3-与吖啶红、吖啶橙染料均可形成离子缔合微粒.吖啶红、吖啶橙分别在540、480 nm有较强吸收峰,在550、520 nm有较强荧光峰,吖啶红体系在605 nm处产生1个较强的共振散射(RS)峰,IO3-浓度在1.0×10-7～4.0×10-6 mol/L与605 nm波长处的共振散射光强度成线性关系.吖啶橙体系在560 nm处产生1个较强的共振散射(RS)峰,碘酸根浓度在2.0×10-7～1.2×10-5mol/L与560 nm波长处的共振散射光强度成线性关系.据此建立测定食盐中碘酸根的一种共振散射光谱法.采用此体系测定食盐中碘酸根,结果满意.
재과량적I-존재적희염산개질중,당유IO3-존재시,IO3-여과량적I반응생성I3-,I3-여아정홍、아정등염료균가형성리자체합미립.아정홍、아정등분별재540、480 nm유교강흡수봉,재550、520 nm유교강형광봉,아정홍체계재605 nm처산생1개교강적공진산사(RS)봉,IO3-농도재1.0×10-7～4.0×10-6 mol/L여605 nm파장처적공진산사광강도성선성관계.아정등체계재560 nm처산생1개교강적공진산사(RS)봉,전산근농도재2.0×10-7～1.2×10-5mol/L여560 nm파장처적공진산사광강도성선성관계.거차건립측정식염중전산근적일충공진산사광보법.채용차체계측정식염중전산근,결과만의.
Under the conditions of HCl-KI,acridine red (AR) has a max absorption peak at 540 nm,the max absorption peak of acridine orange (AO) at 480 nm. There is a fluorescence peak at 550 nm for AR and at 520nm for AO. When there is IO3-,it reacts with excessive I- to form I3-. The two dyes and I3- all combine to form an association particle, respectively. To the systems of AR,it exhibits a strong resonance scattering (RS) peak at 605 nm. IO3- concentration in 1. 0× 10-7～4. 0× 10-6 mol/L is proportional to the resonance scattering peak at 605 nm. There is hypochromic effect at absorption wavelength of 540 nm,and fluorescence quenching at 550 nm. To the systems of AO,the RS peak at 560 nm is most sensitive with IO3- concentration in 2. 0× 10-7～1.2× 10-5 mol/L. The system of AR is applied to the determination of IO3- in table salt.