CAJ | 학술논문

环境水样中污染物种类繁多，共存物自然转化相互竞争影响.通过优化色谱分离分析条件，建立萘普生色谱分析方法，考察各类共存物对萘普生自然光降解的影响.以呋喃唑酮为紫外吸收重叠共存物考察其对萘普生自然光降解的影响.实验结果显示，呋喃唑酮明显抑制萘普生光降解，说明具有紫外吸收重叠的共存物会发生竞争光降解.此外，分别选取了具有与萘普生260 nm处紫外吸收重叠的双氯芬酸钠、酮洛芬、吲哚美辛、依洛沙星和紫外吸收不重叠的布洛芬、甲硝唑作为共存物，考察其对萘普生自然光降解的影响规律.结果表明，具有不同结构及紫外吸收特征的化合物对萘普生自然光降解的影响不同，这些共存物和萘普生之间紫外吸收的重叠程度及吸收强度决定了共存物对萘普生自然光降解的抑制作用程度，抑制作用随紫外重叠的增加而增加.这种共存物及紫外吸收特征和其对萘普生的自然光降解抑制作用关系的竞争降解规律，是萘普生自然归趋研究的重要依据.①
배경수양중오염물충류번다，공존물자연전화상호경쟁영향.통과우화색보분리분석조건，건립내보생색보분석방법，고찰각류공존물대내보생자연광강해적영향.이부남서동위자외흡수중첩공존물고찰기대내보생자연광강해적영향.실험결과현시，부남서동명현억제내보생광강해，설명구유자외흡수중첩적공존물회발생경쟁광강해.차외，분별선취료구유여내보생260 nm처자외흡수중첩적쌍록분산납、동락분、신타미신、의락사성화자외흡수불중첩적포락분、갑초서작위공존물，고찰기대내보생자연광강해적영향규률.결과표명，구유불동결구급자외흡수특정적화합물대내보생자연광강해적영향불동，저사공존물화내보생지간자외흡수적중첩정도급흡수강도결정료공존물대내보생자연광강해적억제작용정도，억제작용수자외중첩적증가이증가.저충공존물급자외흡수특정화기대내보생적자연광강해억제작용관계적경쟁강해규률，시내보생자연귀추연구적중요의거.①
The effect of coexisting compounds on the fate of pharmaceuticals under solar irradiation was investigated. Furazolidone with familiar absorption spectrum to NPX was employed to study the effect of photodegradation. The experimental results indicated that the presence of coexisting compounds with familisr absorption spectrum to NPX could produce obvious effect on the photodegradation of NPX. Besides ,the overlapping absorption spectrum to NPX of 260 nm such as diclofenac sodium,ketoprofen,indometacin, enoxacin and the non- overlapping absorption spectrum ibuprofen and metronidazole were selected to investigate the mechanism of effect. The results showed that the effect depended on the degree of overlapping absorption spectrum between NPX and the coexisting pharmaceuticals. The relationship between the degree of the influence and the ultraviolet absorption spectra of coexisting pharmaceuticals found in this study could give an example in assessing the fate of pharmaceuticals in environmental water.