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SPE/GC/MS 를 이용한 Phthalate Ester 의 동시 분석
양승태(Seung Tae Yang),정상섭(Sang Sub Jung),차상덕(Sang Duk Cha) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.1
A method for determining six phthalate esters by using SPE(solid phase extraction) and GC/MS is descrived. The SPE was performed with C_(18)-bonded silica in 6㎖ Supelclean LC-18 cartridge of Supelco. The optimal pH, volume and flow rate of sample through SPE cartridge were neutrality, 500㎖ and 8.3㎖/min, respectively. The GC analysis was performed with SPB-5 capillary column(30m × 0.25㎜ I.D. × 0.25 film thickness) with He as carrier gas operated with temperature programming from 100℃ (held for 1min) to 260℃ (held for l0min) at 10℃/min, and the detection was by MS-SIM in EI^+ ionization mode at m/z 40∼500. Average extraction recovery(%) was 79.6% for a 500㎖ volume of water spiked at 5㎍/ℓ. Each calibration curve on six phthalate esters was linear for 0.1∼25㎍/ℓ and method detection limit(MDL) was 0.06㎍/ℓ. The SPE was compared with LLE(liquid liquid extraction) in the extraction recovery(%). The procedure could be used for examinating effect of sample matrix on extraction recovery(%) and determining phthalate esters in the river.
廢鑛山 周邊 土壤 및 植物體의 重金屬 存在形態와 含量調査
鄭相燮,朴昶東,姜相載,朴愚喆 慶北大學校農業科學技術硏究所 1993 慶北大農學誌 Vol.11 No.-
廢鑛山 周邊의 土壤 및 植物體에 存在하는 重金屬과 그들의 土壤에서의 存在形態에 따른 分布를 調査하였다. 土壤 中 重金屬 含量은 Mn을 除外하고 A土壤에서 제일 많았고, Mn은 B土壤에서 含量이 제일 높았다. 存在形態에 따른 각 重金屬의 含量은 각 元素別로 차이가 있었는데, 즉 Cd와 As는 有機態, Cu와 Pb 및 Mn은 Carbonate態, Fe와 Zn은 殘渣態가 다른 形態보다 더 높게 나타났다. 참억새와 골풀은 각각 75%와 15% 程度로 棲息하고 있었으며, 이는 이들 植物들이 重金屬에 대해 耐性을 가지고 있음을 보여주었다. 참억새와 골풀에 分布되어 있는 重金屬은 Mn을 제외하고 줄기보다는 뿌리에 더 많이 含有되어 있었다. 참억새의 경우 Zn은 줄기와 뿌리에 비슷하게 分布하는 것으로 나타났다. 周邊 用水의 分析 結果 浸出水에서 重金屬 含量이 높게 나타났으며, Fe와 Mn 및 Zn이 많이 檢出되었다. We investigated in the existential forms of heavy metals and their distribution in plant and soil surrounding ruined mine in Daduk area. The content of heavy metals in soils was more plentiful in A soil than that in another soil, excepting only Mn. The content of Mn in soils was greater in B soil than those in another soils. The content of each heavy metals, according to existential form, had different patterns on the comparision of each elements ; organic-form on Cd and As, Carbonate-form Cu, Pb and Mn and Residual-form on Fe and Zn. The popularity ration of M. senensis and J. decipiens were about 65% and 72%, respectively, and which means that these plants had resistances to heavy metals. The contents of heavy metals absorbed in root was higher than those of stem except Mn, In M. sinensis, the contents of Zn in root was similar to that of stem. To study the heavy metal contents in water, the highest content of heavy metal, mainly Fe, Mn and Zn, were calculated in extracting water.