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实验室常见的十个小问题及解决方法

来源:南京先欧仪器   发布时间:2019-06-24 15:34:36   点击率:394

实验室常见的十个小问题及解决方法


ZHONGSUOZHOUZHI,SHIYANSHICHANGYUDAODEXIAOWENTIGENJIEJUEBANFA。BIRUMAFULUZAISHIYONGGONGCHENGZHONGFACHUJINGBAO,WOMENZHUYIKANYIXIAWENDUYIBIAOSHANGSHUXIANDESHIBUSHI“-----”,SHUOMINGWENDUCHUANGANQIDUANLULE,NINGJINCHUANGANQISHANGDEGUDINGLUOSI,HUOZHEGENGHUANXINDECHUANGANQIJIUKEYILE。SHIYANSHIZHONGCHANGCHANGHUIYUDAOYIXIEYIXIANGBUDAODE“XIAOMAFAN”,RUPINGSAIZHANGUDABUKAI,YIQISHANGDEWUGOUNANYICHUQU,FENYESHIFASHENGRUHUAXIANXIANGDENGDENG。RUNENGCAIQUSHIDANGFANGFAHUOJIQIAOJIAYICHULI,ZHEIXIEMAFANJIUHUIYINGRENERJIE。


腾讯欢乐捕鱼1.DAKAIZHANGUDEBOLIMOKOU


DANGBOLIYIQIDEMOKOUBUWEIYINZHANGUERDABUKAISHI,KECAIQUYIXIAJIZHONGFANGFAJINXINGCHULI。

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(2)JIAREYOUXIEZHANGUZHEDEMOKOU,BUBIANQIAOJIHUOQIAOJIWUXIAO,KEDUIZHANGUBUWEIDEWAICENGJINXINGJIARE,SHIQISHOUREPENGZHANGERYUNEICENGTUOLI。RUYONGREDESHIBUDUIZHANGUCHUJINXING“REFU”、YONGDIANCHUIFENGHUOYOUDONGHUOYANHONGKAOMOKOUCHUDENGDENG。


腾讯欢乐捕鱼(3)JINRUNYOUXIEMOKOUYINYAOPINQINSHIERZHANGUJIAOLAO,HUOSHUJIEGOUFUZADEGUIZHONGYIQI,BUYIQIAOJIHEJIARE,KEYONGSHUIHUOXIYANSUANJINPAOSHUXIAOSHIHOUJIANGQIDAKAI。RUJIYONGYIQI,YEKECAIYONGSHENTOULIJIAOQIANGDEYOUJIRONGJI(RUBEN、YISUANYIZHI、SHIYOUMIJIHUPOSUANERXINZHIHUANGSUANNADENG)DIJIADAOMOKOUDEFENGXIJIAN,SHIZHISHENTOUJINRUNDAOZHANGUZHEDEBUWEI,CONGERXIANGHUTUOLI。


2.DAKAIJINGUDELUOXUANPINGGAI

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3.QUCHUBEIJIAOSAIZHANJIEDEWENDUJI

腾讯欢乐捕鱼DANGWENDUJIHUOBOLIGUANYUJIAOSAIHUOJIAOGUANZHANJIEZAIYIQIERNANYIQUCHUSHI,KEYONGXIAOGAIZHUIHUODAOCUODEJIANDUANCHARUWENDUJI(HUOBOLIGUAN)YUJIAOSAI(HUOJIAOGUAN)ZHIJIAN,SHIZHIXINGCHENGKONGXI,ZAIDISHANGJIDISHUI,RUCICAOZUOBINGYANWENDUJI(HUOBOLIGUAN)ZHOUWEIKUOZHAN,TONGSHIZHUJIANSHENRU,HENKUAIJIUHUIQUCHU。YEKEYONGQIAHAONENGTAOJINWENDUJI(HUOBOLIGUAN)DEZUANKONGQI,ZHANSHANGSHAOXUGANYOUHUOSHUI,CONGWENDUJIDEYIDUANTAORU,QINGQINGYONGLI,BIANXUANZHUANBIANTUIJIN,DANGNANYIZHUANDONGSHI,BACHUZAIZHANSHANGRUNHUAJI,JIXUXUANZHUAN,ZHONGFUJICIHOU,BIANKEJIANGWENDUJI(HUOBOLIGUAN)QUCHULAI。


4.SHANGDETESHUWUGOU

DANGBOLIYIQISHANGZHANJIELETESHUDEWUGOU,YONGYIBANDEXIDIFANGFANANYICHUQUSHI,YINGXIANFENBIANCHUWUGOUDEXINGZHI,RANHOUYOUZHENDUIXINGDIJINXINGCHULI。

腾讯欢乐捕鱼DUIYUBURONGYUSHUIDESUANXINGWUGOU,RUYOUJISUAN、FENLEICHENJIWUDENG,KEYONGJIANYEJINPAOHOUQINGXI;DUIYUBURONGYUSHUIDEJIANXINGWUGOU,RUJINSHUYANGHUAWU、SHUIGOUDENG,KEYONGYANSUANJINPAOHOUQINGXI;RUGUOSHIGAOMENGSUANJIACHENJIWU,KEYONGYALIUSUANNAHUOCAOSUANRONGYEQINGXI;ERYANGHUAMENGCHENJIWUKEYONGNONGYANSUANSHIQIRONGJIE;ZHANYOUDIANSHI,KEYONGDIANHUAJIARONGYEJINPAO;XIAOSUANYINWUJIKEYONGLIUDAILIUSUANNARONGYEJINPAOHOUQINGXI;YINJING(HUOTONGJING)FANYINGHOUDEYIN(HUOTONG),JIARUXIXIAOSUANWEIREHOUJIKERONGJIE;JIAOYOUHUOSHUZHIZHUANGWUGOU,KEYONGBEN、ZHILEIDENGYOUJIRONGJIJINRONGHOUZAIYONGPUTONGFANGFAQINGXI。DUIYUYONGSHANGSHUFANGFADOUBUNENGXIJINGDEBOLIYIQI,KEYONGXIDEQINGFUSUANJINRUNWUGOUBIANYUAN,WUGOUJIUHUISUIZHEBEISHIDIAODEBOLIBOCENGTUOLUO,RANHOUYONGQINGSHUIQINGXI。ERBOLISUIRANSHOUDAOFUSHI,DANSUNSHANGHENXIAO,YIBANBUYINGXIANGJIXUSHIYONG。


5.RONGJIESHAOPINGNEIBISHANGXICHUDEJIEJING

腾讯欢乐捕鱼ZAIHUILIUCAOZUOHUONONGSUORONGYESHI,JINGCHANGHUIYOUJIEJINGXICHUZAIYEMIANSHANGFANGDESHAOPINGNEIBISHANG,QIEFUZHELAOGU,BUJINBUNENGJIXUCANJIAFANYING,YOUSHIHAIHUIYINREWENDINGXINGCHAERZHUJIANFENJIEBIANSE。YUCIQINGKUANG,KEQINGQINGZHENYAOSHAOPING,YINEIBURONGYEJINRUNJIEJING,SHIQIRONGJIE。RUGUOZHUANGZHIHUODONGSHOUXIAN,BUNENGZHENYAOSHAOPINGSHI,KEYONGLENGDESHIBUFUZAISHAOPINGSHANGBU,SHIRONGJILENGNINGYANQIBILIUXIASHI,RONGJIEXICHUDEJIEJING。


6.SHOUSHISALUODEGONG

腾讯欢乐捕鱼SHIYANSHIZHONGCHANGYONGCHONGGONGYALIJIHESHUIYINWENDUJI。RUGUOCAOZUOBUDANGHUOWENDUJIPOSUNSHI,DOUHUIFASHENG“SAGONGSHIGU”。GONGZHENGQIDUIRENTIWEIHAIJIDA,BIXUJISHI、CHEDIQINGLISALUODEGONG,BUKERENQILIUSHI。QINGLIFANGFAJIAODUO,KEYIBUTONGQINGKUANG,XUANZESHIYONG。

(1)XISHOUSALUOSHAOLIANGDEGONG,KEYONGPUTONGDIGUAN,JIANGGONGZHUYIDIANYIDIXIQI,SHOUJIZAIRONGQIZHONG。RUOGONGLIANGJIAODAHUOSALUOZAIGOUCAOFENGXIZHONG,KEJIANGXILVPINGYUYIZHI75°BOLIWANGUANTONGGUOJIAOSAILIANJIEZAIYIQI,ZIZHIYIGE“JIANYAXIGONGQI”,LIYONGFUYAJIANGGONGLITONGGUOBOLIGUANXIRENLVPINGNEI。XILVPINGYUJIANYABENGZHIJIANDELIANJIEXIANKESHAOZHANGXIE,YIMIANJIANGGONGXIRUBENGZHONG。


腾讯欢乐捕鱼(2)ZHANFUSALUOZAIZHUOMIAN(HUODIMIAN)SHANGDEGONG,RUOYIFENSANCHENGXIXIAOWEILI,KEYONGJIAODAIZHIZHANFUQILAI,RANHOUJINRUSHUIXIA,YONGMAOSHUASHUALUOZHIRONGQIZHONG。CIFAJIANBIANYIXING,XIAOGUOHAO。


腾讯欢乐捕鱼(3)LENGDONGGONGDERONGDIANWEI-38.87℃。RUGUOZAISALUODEGONGSHANGMIANFUGAISHILIANGDEGANBINGYIBINGTONGHUNHEWU,GONGJIUHUIZAIJIMIAOZHONGZHINEIBEILENGDONGCHENGGUTAIERSHIQULIUDONGXING,CISHIKEJIAOWEIFANGBIANDIJIANGQIQINGLIGANJING。


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7.XIAOCHURUHUAXIANXIANG

腾讯欢乐捕鱼ZAISHIYONGFENYELOUDOUJINXINGCUIQU、XIDICAOZUOSHI,YOUQISHIYONGJIANRONGYEXIDIYOUJIWU,JULIEZHENDANGHOU,WANGWANGHUIYOUYUFASHENGRUHUAXIANXIANGBUFENCENG,ERNANYIFENLI。RUGUORUHUACHENGDUBUYANZHONG,KEJIANGFENYELOUDOUZAISHUIPINGFANGXIANGSHANGHUANMANDIXUANZHUANYAODONGHOUJINGZHIPIANKE,JIKEXIAOCHUJIEMIANCHUDEPAOMOZHUANG,CUJINFENCENG。RUORENGBUFENCENG,KEBUJIASHILIANGSHUIHOU,ZAISHUIPINGXUANZHUANYAODONGHUOFANGZHIGUOYE,BIANKEFENCHUQINGXIDEJIEMIAN。


腾讯欢乐捕鱼RUGUORONGJIDEMIDUYUSHUIJIEJIN,ZAICUIQUHUOXIDISHI,JIURONGYIYUSHUIFASHENGRUHUA。CISHIKEXIANGQIZHONGJIARUSHILIANGYIMI,JIANGDIYOUJIXIANGMIDU,CONGERBIANYUFENCENG。


腾讯欢乐捕鱼DUIYUWEIRONGYUSHUIDEDIJIZHILEIYUSHUIXINGCHENGDERUHUAYE,KETONGGUOJIARUSHAOLIANGLVHUANA、LIUSUANANDENGWUJIYANDEFANGFA,CUSHIQIFENCENG。


8.KUAISUGANZAOYIQI

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9.WENGUSHUIYUZHONGDESHAOPING

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腾讯欢乐捕鱼10.ZHIZUOJIANYIDEHENGWENLENGQUECAO

当某些实验需要恒温槽的温度较长时间保持低于室温时,用冷水或冰浴冷却往往达不到满意的效果。这时可自制一个简易的恒温冷却槽:用一个较大些的纸箱(试剂或仪器包装箱即可)作外槽,把恒温槽放入纸箱中作内槽,内外槽之间放上适量干冰,再用泡沫塑料作保温材料,填充空隙并覆盖住上部。干冰的用量可根据实验所需温度与时间来调整。这种冷却槽制作简便,保温效果好。