智利南部农场乳制品废弃物特性研究CHARACTERIZATION OF DAIRY SLURRY IN SOUTHERN CHILE FARMS使用格哈特Kjeldatherm消化系统和Vapodest 5全自动凯氏定氮仪按凯氏定氮法测定厩肥总氮使用格哈特Vapodest 12自动凯氏定氮蒸馏仪直接蒸馏厩肥氨氮并滴定
电化学氧化法处理鱼罐头废水Treatment of fish canning wastewater by electrochemical oxidation process总凯氏氮使用格哈特 全自动铝块消化系统Kjeldatherm和Vapodest 20s半自动凯氏定氮蒸馏系统COD的测定采用适用于高氯浓度样品的封闭回流滴定法总磷的测定采用硫酸-硝酸消化法进行
利用土壤重金属富集和迁移因子确定蔬菜的潜在吸收量Using soil heavy metal enrichment and mobility factors to determine potential uptake by vegetabkes使用格哈特Gerhardt公司凯道森Kjeldatherm消化系统,特博索Turbosorg涤气系统和维普得Vapodest 30凯氏定氮蒸馏仪检测总凯氏氮、硝态氮、氨氮Gerhardt Kjeldtherm digestion system, Turbosorg scrub unit and Vapodest 30 distilling (TKN, NO3-N, and NH4-N)每种混合物中的样品用王水(3盐酸+硝酸)消化,以确定铜、铅和铝的浓度。Samples from each mixture were also digested with aqua regia(3 HCl + HNO3) to determine concentrations of Cu, Pb and Al (aluminum).
垂直流人工湿地植物中多环芳烃PAHs的积累Accumulation of PAHs in plants from vertical flow-constructed wetland波兰环境工程新技术研究所波兰琴斯托霍瓦理工大学环境化学、水和废水技术系波兰齐埃洛纳戈拉大学环境工程研究所氨氮和总氮使用格哈特公司维普得Vapodest 30测定 Ammonia nitrogen in a Vapodest 30 device according to PN-C-04576-4:1994Total nitrogen—In a Vapodest 30 deviceaccording to PN-EN 25663:2001 多环芳烃PAHs样品以环己烷和二氯甲烷混合物为溶剂进行提取Extraction of the samples was carried out with cyclohexane and dichloromethane mixtures as solvents.