[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-UgDMVPhv2WBHTB2i4TjBEsDrPOx3aREaFgtv96QET8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2026-05-20 20:53:28",379544050,[8,9,10,11],"30-220","50—260","30-260","50-300",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},87,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","2f92c90fd7234d97b953a1ea692bd23c","","根据《水和废水监测分析方法》(第四版)和《水质 挥发性有机物的测定 吹扫 捕集\u002F气相色谱法》(HJ 686-2014 ),挥发性有机物指常温常压下能够挥发或气态 的有机物,世界卫生组织(WHO, 1989)定义熔点低于室温、沸点在 龙 之间的有机物为挥发性有机物,英文Volatile Organic Compounds,简写为V0Cs.( )",[21,32,41,50,59,68,76,85,88,93],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],379544043,[25,26,27,28],"HN03, 24","HNO3, 24","5%HNO3, 24","浓 HC1, 12","根据《水质 烷基汞的测定 吹扫捕集\u002F气相色谱-冷原子荧光光谱法》(HJ 977一 2018)测定水中烷基汞(甲基汞和乙基汞)时,分析中所用的器皿(采样瓶、蒸個 瓶、接收瓶、聚四氟乙烯管等)应在 中浸泡至少 ho ( )③","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],379544044,[36,37,38,39],"1","2","3","5","根据《水质 烷基汞的测定 吹扫捕集\u002F气相色谱-冷原子荧光光谱法》(HJ 977—2018 )测定水中烷基汞(甲基汞和乙基汞)时,衍生化前,试样中Hg2+的含 量必须低于 ng.( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],379544045,[45,46,47,48],"FPD, ECD","FID, ECD","ECD, FID","ECD, FPD","根据《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014 )测定 水中挥发性有机物时,苯系物可以选用 检测器,卤代炷选用 检 测器.( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],379544046,[54,55,56,57],"氮气,空气","氮气,氧气","高纯氮气,高纯氮气","氯气,空气","根据《水和废水监测分析方法》(第四版)和《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014 )测定水中挥发性有机物时,吹脱水样用 或 .( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],379544047,[63,64,65,66],"氯化钠","抗坏血酸","碳酸钠","硼酸钠","根据根据《水和废水监测分析方法》(第四版)和《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014 )测定水中挥发性有机物时,水样中的余氯对 测定产生干扰,用 除去.( )",{"answer":69,"createTime":5,"id":70,"options":71,"question":75,"source":30,"type":31},[],379544048,[72,39,73,74],"8","11","15","根据《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014 )测定水中挥发性有机物时,常用吹扫时间为 min.( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":30,"type":31},[],379544049,[80,81,82,83],"聚乙二醇,35%苯基甲基聚硅氧烷","35%苯基甲基聚硅氧烷,6%氣丙基苯-94%二甲基聚硅氧烷","聚乙二醇,6%氤丙基苯-94%二甲基聚硅氧烷","6%氤丙基苯-94%二甲基聚硅氧烷,5%苯基-95%甲基聚硅氧烷","根据《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014)测 定水中挥发性有机物时,推荐分析苯系物使用固定相为 的厚液膜石英 毛细管色谱柱,分析卤代炷使用固定相为 的厚液膜石英毛细管色谱柱. ( )",{"answer":86,"createTime":5,"id":6,"options":87,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":89,"createTime":5,"id":90,"options":91,"question":92,"source":30,"type":31},[],379544051,[36,37,38],"根据《水和废水监测分析方法》(第四版)和《水质 挥发性有机物的测定 吹扫捕集\u002F气相色谱法》(HJ 686—2014 ),采集VOCs水样时,若无余氯,水样中应加 盐酸保存,使水样pH V . ( )",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":30,"type":31},[],379544052,[97,98,99,100],"地表水和废水","地表水",",废水","地下水","气相色谱法适用于 中三氯乙醛的测定.( )"]