[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbGabmv9RhUM5_zcdGHpSmt9Ddna2PmzKR1pyLFziuaU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":32,"type":33},[],"2023-11-01 12:09:04",102669248,[8,9,10,11,12],"树胶","蛋白质","树脂","鞣质","黏液质",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},25,"080666b93024a7130ea7ffa772f6e8f2","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","天然药物化学（中药化学）","27affbbeb800402cb62baffbb1056678","分离","226.浓缩醇提取液中加水可沉淀",[22,34,42,47,50,60,70,80,90,97],{"answer":23,"createTime":5,"id":24,"options":25,"question":31,"source":32,"type":33},[],102669241,[26,27,28,29,30],"淀粉","氨基酸","果糖","蔗糖","葡萄糖","220.能与中性醋酸铅产生沉淀的是","v1",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":41,"source":32,"type":33},[],102669243,[38,27,39,9,40],"有机酸","鞣酸","中性皂苷","221.不能被中性醋酸铅从水溶液中沉淀的成分是",{"answer":43,"createTime":5,"id":44,"options":45,"question":46,"source":32,"type":33},[],102669246,[26,8,12,9,10],"225.在浓缩的水提取液中,加一定量乙醇,不可以除去哪一成分",{"answer":48,"createTime":5,"id":6,"options":49,"question":20,"source":32,"type":33},[],[8,9,10,11,12],{"answer":51,"createTime":5,"id":52,"options":53,"question":59,"source":32,"type":33},[],102669249,[54,55,56,57,58],"密度不同","分配系数不同","分离系数不同","萃取常数不同","介电常数不同","239.两相溶剂萃取法原理是利用混合物中各成分在两相溶剂中的",{"answer":61,"createTime":5,"id":62,"options":63,"question":69,"source":32,"type":33},[],102669250,[64,65,66,67,68],"K","RF","&beta;","C","&alpha;","237.分配系数常用表示方法为",{"answer":71,"createTime":5,"id":72,"options":73,"question":79,"source":32,"type":33},[],102669251,[74,75,76,77,78],"烧杯","三角瓶","冷凝管","烧瓶","分液漏斗","236.实验室萃取在哪儿进行",{"answer":81,"createTime":5,"id":82,"options":83,"question":89,"source":32,"type":33},[],102669252,[84,85,86,87,88],"乙醚","甲醇","正丁醇","醋酸乙酯","苯","243.不可能与水组成两相溶剂萃取系统的是",{"answer":91,"createTime":5,"id":92,"options":93,"question":96,"source":32,"type":33},[],102669253,[87,86,94,84,95],"氯仿\u002F乙醇","戊醇","245.从水溶液中萃取亲水性成分,下述哪项溶剂不适宜",{"answer":98,"createTime":5,"id":99,"options":100,"question":106,"source":32,"type":33},[],102669254,[101,102,103,104,105],"醇沉淀法","铅盐沉淀法","酸溶碱沉法","透析法","盐析法","230.有效成分为碱性化合物,欲纯化,可选用下列哪种方法"]