实验室常用溶液配制

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实验室常用溶液的配置Amp+/Kan+:贮存液浓度为50mg/mL称取500mg于10mL超纯水中溶解,抽滤后1mL分装到离心管中,于-30℃冻存X-gal:贮存浓度为20mg/mL称取20mgX-gal溶于1mL二甲基甲酰胺中,-30℃中用锡箔纸包裹后避光保存,不需要过滤除菌IPTG:贮存浓度为0.84mol/L称取2gIPTG溶于8mL超纯水中,用水定容到10mL,用0.22um的一次性滤过器过滤除菌,1mL分装到离心管中并于-30℃保存CaCl2:贮存浓度为1mol/L称取1.11gCaCl(或者CaCl:2H2O1.4698g)溶于8mL超纯水中,定容到10mL,用0,22um的一次性滤过器过滤除菌,1mL分装到离心管中,并于-30℃保存LB培养基:胰蛋白胨(Tyrtone)10g/L酵母提取物(YeastExtraction)5g/L氯化钠10/L根据经验用NaOH调节PH为7.2-7.6,然后高压蒸汽灭菌,注意及时从灭菌锅中取出无DNA酶的RNA酶:将胰RNA酶(RNA酶A)溶于10mmol/LTris-Cl(PH7.5)、15mmol/LNaCl中,配成10mg/mL的浓度,于100℃加热15min,缓慢冷却至室温,分装成小份保存于-20℃Bradford贮存液95%乙醇100mL88%磷酸200mLG2500.35g室温下可储存,一般4℃Bradford工作液Bradford贮存液30mL双蒸水425mL95%乙醇15mL88%磷酸30mL储存于4℃超声破碎缓冲液KCl300mM22.37gKH2PO450mM6.81gEDTA1mM0.292g(EDTA-2Na-2H2O)0.372g定容至1L,调pH至8.0包涵体洗涤液KCl300mM22.37gKH2PO450mM6.81gEDTA5mM1.46g(EDTA-2Na-2H2O)1.86g尿素2M120gTritonX-1000.5%5ml脱氧胆酸钠盐0.1%1g定容到1L调pH至8.0匀浆缓冲液(pH=7.5)成分:20mMHEPES0.002mol=0.476g加入0.952g1.5mMMgCl20.00015mol=0.0036g加入0.0072g0.2mMEDTA0.00002mol=0.00584g加入0.01168g0.1MNaCl0.01mol=0.58g加入1.16g0.5mM钒酸钠0.00005mol=0.0092g加入0.0184g加100mL水进行溶解,NaOH调pH至7.50.2mMDTT总体积500μL加入0.1μL0.4mMPMSF总体积500μL加入20μL1%SDS加入50μL10%SDS其中DTT和PMSF匀浆之前加入,SDS匀浆之后离心之前加入DTT配成1M母液,溶于0.01M乙酸钠(pH=5.2)中,过滤除菌PMSF配成10mM母液,溶于异丙醇10*PBSNaCl80.0669gKCl2.0129gNa2HPO414.1960gKH2PO42.4496g水定容至1L,使用时稀释10倍,用NaOH调pH至7.4Startwith800mLofdistilledwatertodissolveallsalts.AdjustthepHto7.4withHCl.Adddistilledwatertoatotalvolumeof1liter.Theresultant1xPBSshouldhaveafinalconcentrationof10mMPO43−,137mMNaCl,and2.7mMKClIfusedincellculturing,thesolutioncanbedispensedintoaliquotsandsterilizedbyautoclaving(20min,121°C,liquidcycle).Sterilizationmaynotbenecessarydependingonitsuse.PBScanbestoredatroomtemperatureorinthefridge.However,concentratedstocksolutionsmayprecipitatewhencooledandshouldbekeptatroomtemperatureuntilprecipitatehascompletelydissolvedbeforeuse.转膜缓冲液(含有SDS)1L剂量甘氨酸2.9gTris5.8gSDS0.37g甲醇200mL水800mL10×蛋白电泳缓冲液1L剂量Tris碱(Mr121.14)30.2g甘氨酸(Mr75.07)188gSDS(Mr288.38)10g加水至1L用时稀释10倍即可30%丙稀酰胺1L剂量丙烯酰胺290gN,N’-亚甲基双丙稀酰胺10g溶于600ml蒸馏水中,加热至37℃溶解,补足体积至1L,过滤,且pH不大于7.01MTris-Cl(pH6.8)60.55gTris碱溶解于400ml蒸馏水,溶解后调pH值,总体积为500ml1.5MTris-Cl(pH8.8)90.83gTris碱溶解于400ml蒸馏水,溶解后调pH值,总体积为500ml。加约14.5ml浓盐酸,再调整到500ml体积1MDTT用20mL0.01mol/L乙酸钠溶液(pH=5.2)溶解3.09gDTT,过滤除菌后分装考马斯亮蓝R-250染液在90mL甲醇:水(1:1)和10mL冰乙酸混合液中溶解0.25g考马斯亮蓝R-250,过滤后室温保存蛋白酶K(20mg/mL)灭菌的50mMTris(pH8.0),1.5mM乙酸钙溶解,配置成浓度为20mg/mL的溶液,-20℃保存流式缓冲液PBS+5%FBS+0.02%sodiumazideWater45mL20%叠氮钠50μL10*PBS5mLFBS2.5mL文献常见配方:PBS+0.5-1%BSA(5-10%FBS)+0.1%sodiumazide酸酐称取50g重铬酸钾(KCrO4)溶于80mL双蒸水中,90℃中溶解2h,每半小时搅拌促进溶解,溶解完成后,加入1000mL硫酸,分装于2个瓶子中。注意使用过程中,如果其中一瓶的效果不好,不要混合使用。使用5次,就要重配。滴管酸酐中浸泡24h,自来水冲洗至无明显可见颜色,自来水正反面各20遍,双蒸水正反面各20遍,复印纸中包裹,烘干,加棉花塞和胶头,单独包装,灭菌,烘干。双抗(青霉素和链霉素)0.8g链霉素和80WU青霉素,一起溶于8mlPBS,单位分别为10^5ug/ml和10^5U/ml,然后稀释10倍,分别为10^4ug/ml和10^4U/ml,使用时,按照1%加入,分别为100ug/ml与100U/ml培养基I2%FCS,1%双抗,128uL/40mL肝素钠,RPMI1640培养基II0.1%FCS,1%双抗,128uL/40mL肝素钠,RPMI1640完全培养基10%FCS(5%FCS+5%鱼血清),1%双抗LPS称取2mgLPS溶于1mLPBS中,0.22μm滤膜过滤,硅化离心管,-20℃保存1*Turk染液GentianVioler(结晶紫)50mgAceticAcid(冰乙酸)5mLWater495mL1%巴比妥钠1g巴比妥钠溶于100mL的PBS中,充分混匀,避光保存(80ug/g用量)诱导小鼠腹腔巨噬细胞所需溶液硫代硫酸盐肉汤培养基(Thioglycollatebroth):称取3g,加入到100ml纯水中,高温121℃灭菌15min,然后冷却到室温,再重复2次,进行老化操作。此时已经溶解,呈现透明溶液。冲洗液:RPMI1640+1%双抗培养基:RPMI1640+10%FBS+1%双抗氯化铵红细胞裂解液(10×的储存液)参考流式中文网80.2gNH4Cl(1.5M)8.4gNaHCO3(100mM)3.7gEDTA二钠(10mM)加水至900ml,然后用1M的HCl或1M的NaOH调节pH值至7.4。最后加水至1升。该10*的储存液可在4℃保存6个月。工作液的配制:在使用前蒸馏水稀释10倍即可。(1份储存液加上9份水)。工作液用来裂解红细胞。不能以10*的浓度储存,否则会形成碳酸铵而失效。ACK裂解液参考文献Dynamicvariationincyclingofhematopoieticstemcellsinsteadystateandinflammation,JEM,2011ACK(Ammonium-Chloride-Potassium)LysingBufferAmmoniumChloride150mMMw53.5PotassiumBicarbonate10mMMw100.1EDTA0.1mMMw372.0ACKLysisBuffer(1L)ComponentAmountFinalConcentrationNH4Cl8.3g0.15MKHCO31.0g10mMEDTA200ul0.5M0.1mMaddddH2Oto800ml,adjustpHto7.2-7.4,finalizevolumeto1LwithddH20RedBloodCellLysisUsingACKLysingBuffer1)CollectwholebloodbyvenipunctureinEDTA-treatedcollectiontubes.2)Pipette1mLEDTA-treatedwholebloodintoatubecontaining10-20mLofACKLysingBufferatroomtemperature.3)AllowthebloodsampleplusACKLysingBuffertoincubateatroomtemperaturefor3–5minutes.Lysisoftheredcellsshouldbeevidentduringthisincubation.4)Collectthewhitebloodcellsbycentrifugationat300xgfor5minutesatroomtemperature.5)Aspiratethesupernatant,leavingapproximately50uLtoavoiddisturbingthepellet.6)Gentlymixthecellsandtheremainingfluid,thenadd5mLcoldphosphatebufferedsaline.7)Mixthecellsandphosphatebufferedsaline,andthencollectthecellsbycentrifugationat300xgfor5minutesat2-8°C.8)Aspiratethesupernatantandresuspendthecellsinphosphatebufferedsaline,supplementedwithcarrierproteinifdesired,at2-8°C.9)Thecellsarereadyforfurtheranalysis.

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