Pocket PH Testers yog dab tsi?
Pocket pH testers yog cov khoom siv me me uas xa cov ntaub ntawv rau tus neeg siv nrog qhov tseeb, yooj yim thiab pheej yig. Cov cuab yeej no tau tsim los siv rau hauv cov xwm txheej sib txawv thiab yuav kuaj cov alkalinity (pH) thiab acidity ntawm ntau cov qauv. Lawv tshwj xeeb tshaj yog nrov rau kev kuaj cov qauv dej zoo vim tias lawv haum zoo nyob rau hauv lub hnab tshos kom yooj yim rov qab thiab siv.
Nrog rau ntau daim ntawv thov sib txawv tsim cov qauv ntawm cov qauv, nws yog ib qho tseem ceeb kom paub tias hom pH dej tester yuav ua rau cov txiaj ntsig zoo tshaj plaws rau koj cov qauv kev xav tau. Muaj ntau ntau yam kev xeem nyob rau hauv kev ua lag luam uas muaj ntau hom kev yees los ua kom tiav cov neeg siv khoom xav tau. Muaj peb hom pH dej testers zoo tagnrho rau kev kuaj dej zoo: ib leeg-hluav taws xob electrode pov tseg tester, ib leeg-hluav taws xob hloov hluav taws xob thiab ob-txoj kev hloov tau electrode. Xaiv ib lub pH meter rau cov dej yuav loj heev nyob ntawm cov qauv uas tau sim, lub cadence ntawm qhov kev sim thiab qhov yuav tsum tau muaj tseeb.
Cov nqi pH
Hom kev ntsuas dej zoo tshaj plaws yog qhov ntsuas pH. Dej pH qhia qhov sib npaug ntawm hydrogen ions, uas yog acidic, thiab hydroxide ions, uas yog qhov yooj yim. Qhov sib npaug zoo tag nrho ntawm ob yog nyob ntawm pH ntawm 7. Tus nqi pH ntawm 7 yog nruab nrab. Raws li tus naj npawb qis, cov tshuaj nyob rau hauv ntau acidic; thaum nws nce, nws yog alkaline ntau. Cov nqi sib txawv ntawm 0 (tag nrho acidic, xws li roj teeb acid) txog 14 (tag nrho alkaline, piv txwv li, lub tshuab nqus tsev vacuum). Cov dej kais dej feem ntau yog nyob ib puag ncig pH 7, thaum cov dej tshwm sim ib txwm muaj nyob hauv thaj tsam ntawm 6 txog 8 pH units. Cov ntawv thov uas xav tau kev ntsuas pH muaj nyob hauv txhua qhov kev lag luam thiab tsev neeg. Ib daim ntawv thov hauv tsev, xws li ntsuas pH qib ntawm cov ntses thoob dej yug ntses, txawv ntawm kev ntsuas pH ntawm cov dej hauv cov nroj tsuag dej.
Ua ntej xaiv lub hnab tshos tester, nws yog ib qho tseem ceeb kom paub ntau ntxiv txog cov electrode. Nws yog ib feem ntawm lub hnab tshos tester uas yog dipped rau hauv cov qauv coj mus kuaj pH. Nyob rau hauv lub electrode yog electrolyte (kua los yog gel). Cov electrode junction yog qhov ntxeem tau ntawm cov electrolyte hauv cov electrode thiab koj cov qauv. Yeej, cov electrolyte yuav tsum xau tawm mus rau hauv cov qauv kom cov electrode ua haujlwm kom ua tiav cov txiaj ntsig raug. Tag nrho cov me me no ua haujlwm ua ke hauv cov electrode kom raug ntsuas pH.
Cov electrode maj mam degrades vim tias cov electrolyte txuas ntxiv siv thaum ntsuas ntsuas thiab ua rau lom los ntawm cov kab mob ions los yog cov tebchaw. Ions uas lom cov electrolyte yog hlau, phosphates, sulfates, nitrates thiab proteins. Qhov ntau caustic ib puag ncig, qhov cuam tshuam ntau dua ntawm cov electrode. Caustic ib puag ncig uas muaj cov kab mob sib kis ntau, xws li cov chaw kho dej khib nyiab, tuaj yeem ua kom cov tshuaj lom ntawm electrolyte sai sai. Cov txheej txheem no tuaj yeem tshwm sim sai nrog cov nqi qis dua nkag-theem testers. Hauv lub lis piam, cov meters tuaj yeem ua qeeb thiab tsis zoo. Ib lub hnab tshos pH meter zoo yuav tau nruab nrog cov khoom siv hluav taws xob txhim khu kev qha uas muab kev nyeem ntawv ruaj khov thiab raug tsis tu ncua. Ua kom cov electrode huv si thiab noo kuj tseem ceeb heev rau lub hnab tshos tester qhov kev ua tau zoo thiab kev ua haujlwm ntev.
Tib-kawg pov tseg pH Testers
Rau qee zaus cov neeg siv cov pH testers uas muaj cov qauv dej uas yuav tsum tau muaj pH, cov cuab yeej siv yooj yim siv ib qho hluav taws xob sib txuas yuav muab ntau lub zog thiab raug. Ib leeg-hlwb electrode muaj lub neej luv dua li ob-hluav taws xob electrode thiab feem ntau yog siv rau qee lub sijhawm pH thiab ntsuas kub. Qhov tsis hloov pauv ib qho kev sib txuas sensor muaj qhov tseeb ntawm +0.1 pH. Qhov no yog kev xaiv kev lag luam thiab feem ntau yog yuav los ntawm cov neeg siv khoom tsawg dua. Thaum tus tester tsis muab cov ntawv nyeem kom raug ntxiv lawm, tsuas yog muab pov tseg thiab yuav lwm lub hnab tshos tester. Cov khoom siv pov tseg ib leeg feem ntau siv rau hauv hydroponics, aquaculture, potable water, aquariums, pas dej ua ke thiab spa, kev kawm, thiab kev lag luam vaj.
Ib qho kev sib tshuam hloov tau electrode pH Testers
Ib kauj ruam dhau los ntawm ib leeg-kho pov tseg tester yog ib qho kev sib tshuam hloov pauv hnab tshos tester, uas tuaj yeem ua tiav qhov tseeb ntawm +0.01 pH. Qhov ntsuas no haum rau feem ntau ASTM Intl. thiab US EPA cov txheej txheem xeem. Lub sensor yog hloov tau, khaws cia lub tsev, yog li nws tuaj yeem siv tau ntau zaus. Hloov lub sensor yog ib qho kev xaiv rau cov neeg siv xws li ib txwm siv lub ntsuas ntsuas. Thaum cov chav tsev niaj hnub siv thiab cov qauv muaj cov ntsiab lus siab ntawm ions uas lom cov electrolyte hauv cov electrode, nws yuav muaj txiaj ntsig zoo dua los hloov mus rau qib tom ntej ntawm cov ntsuas nrog ob-txoj kev electrodes technology.
Muab ob npaug rau-kawg Hloov Electrode pH Testers
Lub tshuab hluav taws xob ob chav sib txuas muab txoj hauv kev txav mus los ntev dua rau cov kab mob mus ncig, ncua kev puas tsuaj uas ua rau cov pH electrode, txhim kho thiab txuas lub neej ntawm chav tsev. Ua ntej kis tau mus rau lub electrode, nws yuav tsum diffuse los ntawm tsis yog ib qho kev sib tshuam, tab sis ob junctions. Cov ob-txheej testers yog hnyav-lub luag hauj lwm, high-zoo testers uas tiv taus cov roughest tej yam kev mob thiab cov qauv. Lawv tuaj yeem siv nrog cov dej khib nyiab, kev daws teeb meem uas muaj sulfides, cov hlau hnyav thiab Tris buffers. Rau cov neeg siv khoom uas yuav tsum tau rov ua dua lawv cov kev ntsuas pH, nthuav tawm cov sensors rau cov ntaub ntawv nruj heev, nws yog ib qho tseem ceeb uas yuav tsum tau siv ob lub ntsuas hluav taws xob txuas ntxiv kom ntev lub neej ntawm cov electrode thiab xyuas kom tseeb, thiab. Nrog rau txhua qhov kev siv, kev nyeem ntawv yuav nrawm thiab tsis tshua ntseeg siab. Kev tsim ob-txoj kev ua kom ntseeg tau qhov zoo tshaj plaws thiab cov cuab yeej siv los ntsuas pH qib ntawm qhov pom tseeb ntawm +0.01 pH.
Calibration yog qhov tseem ceeb rau qhov tseeb. Nws tsis yog qhov tsis yooj yim rau lub ntsuas pH kom ntws los ntawm nws qhov ntsuas ntsuas. Thaum nws ua li ntawd, cov txiaj ntsig tsis raug yuav tshwm sim. Nws yog ib qho tseem ceeb rau calibrate testers kom tau txais kev ntsuas raug. Qee cov pH hnab tshos ntsuas muaj qhov tsis siv neeg tsis siv neeg paub, ua kom yooj yim thiab nrawm. Ntau tus qauv uas tsis tshua muaj nqi yuav tsum tau calibration ntau zaus los xyuas kom meej qhov ntsuas. Calibration rau pH testers yuav tsum tau ua tsis tu ncua, pom zoo txhua hnub lossis tsawg kawg ib zaug hauv ib lub lis piam. Calibrate mus txog peb lub ntsiab lus siv US los yog National Institute of Standards and Technology buffer set standard.
Cov hnab tshos testers tau trending hauv kev sim dej ntau xyoo dhau los, vim tias lawv yog cov compact, portable, raug thiab tuaj yeem tsim cov ntawv nyeem nyob rau hauv ib lub vib nas this nrog lub laub khawm. Raws li kev lag luam tester txuas ntxiv xav tau kev hloov pauv, cov tuam txhab tsim khoom tau ntxiv cov yam ntxwv xws li cov vaj tsev tsis muaj dej tsis zoo thiab cov plua plav pov thawj los tiv thaiv cov neeg sim los ntawm qhov chaw ntub dej thiab kev ua tsis zoo. Tsis tas li ntawd, loj dua, ergonomic qhia ua kom nyeem ntawv yooj yim dua. Tsis siv neeg kub them nyiaj, ib qho tshwj xeeb feem ntau tshwj tseg rau cov khoom siv tes thiab cov ntsuas ntsuas, kuj tau ntxiv rau cov qauv tshiab. Qee cov qauv txawm tias muaj peev xwm ntsuas thiab pom qhov ntsuas kub tiag tiag. Advanced testers yuav feature stability, calibration thiab roj teeb ntsuas ntawm cov zaub thiab nws pib-tawm kom txuag roj teeb lub neej. Xaiv lub hnab tshos tester rau koj daim ntawv thov yuav muab kev ntseeg siab thiab raug siv tsis tu ncua.
Peb tseem tuaj yeem muab cov ntsuas dej zoo uas ntsuas lwm qhov sib txawv rau koj siv
Post lub sij hawm: Nov-12-2024