Kodi Pocket PH Testers ndi chiyani?
Pocket pH testers ndi zida zazing'ono zonyamula zomwe zimapereka chidziwitso kwa wogwiritsa ntchito molondola, zosavuta komanso zotsika mtengo. Zidazi zidapangidwa kuti zizigwiritsidwa ntchito mosiyanasiyana ndipo zimayesa alkalinity (pH) ndi acidity yamitundu yosiyanasiyana. Iwo makamaka ndi otchuka poyesa zitsanzo za ubwino wa madzi chifukwa amakwanira bwino m'thumba kuti atengedwe mosavuta ndi kuzigwiritsa ntchito.
Ndi mapulogalamu ambiri osiyanasiyana omwe amapanga mitundu ingapo ya zitsanzo, ndikofunikira kudziwa mtundu wa pH yoyesa madzi yomwe ingapereke zotsatira zabwino kwambiri pazosowa zanu zoyesa. Pali oyesa osiyanasiyana pamsika omwe amapereka mitundu yosiyanasiyana yaukadaulo kuti akwaniritse zosowa za ogula. Pali mitundu itatu ya zoyezera madzi za pH zomwe zili zoyenera kuyesa madzi abwino: choyezera chamtundu umodzi cha electrode disposable, ma elekitirodi osinthika a single-junction ndi ma elekitirodi osinthika kawiri. Kusankha mita ya pH yamadzi kudzadalira kwambiri chitsanzo chomwe chikuyesedwa, cadence ya kuyezetsa komanso kulondola kofunikira.
Mtengo wa pH
Mtundu wodziwika kwambiri woyezetsa madzi ndi kuyesa pH. Madzi pH akuwonetsa kulinganiza pakati pa ayoni a haidrojeni, omwe ali acidic, ndi ayoni a hydroxide, omwe ndi ofunikira. Kulinganiza koyenera kwa ziwirizi kuli pa pH ya 7. Phindu la pH la 7 silinalowererepo. Pamene chiwerengero chikuchepa, chinthucho chimakhala ndi acidic kwambiri; pamene ikuwonjezeka, imakhala yamchere. Miyezo imachokera ku 0 (ya acidic kwathunthu, monga asidi ya batri) mpaka 14 (zamchere mokwanira, mwachitsanzo, zotsukira). Madzi apampopi nthawi zambiri amakhala mozungulira pH 7, pomwe madzi omwe amapezeka mwachilengedwe amakhala apakati pa 6 mpaka 8 pH mayunitsi. Mapulogalamu ofunikira kuyeza ma pH amapezeka pafupifupi m'mafakitale ndi nyumba iliyonse. Ntchito yapakhomo, monga kuyeza ma pH a nsomba za aquarium, ndi yosiyana ndi kuyesa pH mlingo wa madzi mu malo opangira madzi.
Musanasankhe choyesa m'thumba, ndikofunika kudziwa zambiri za electrode. Ndi gawo la pocket tester yomwe imamizidwa mu chitsanzo kuti itenge muyeso wa pH. Mkati mwa electrode muli electrolyte (madzi kapena gel osakaniza). Mpweya wa electrode ndi porous point pakati pa electrolyte mu electrode ndi chitsanzo chanu. Kwenikweni, electrolyte iyenera kutuluka mu zitsanzo kuti electrode igwire ntchito kuti ipeze zotsatira zolondola. Zigawo zing'onozing'ono zonsezi zimagwirira ntchito limodzi mkati mwa electrode kuti ayese pH molondola.
Elekitirodi imachepa pang'onopang'ono chifukwa electrolyte imagwiritsidwa ntchito nthawi zonse poyesa miyeso ndipo imakhala poizoni ndi ma ion oipitsa kapena mankhwala. Ma ion omwe amapha electrolyte ndi zitsulo, phosphates, sulfates, nitrate ndi mapuloteni. Malo owopsa kwambiri, amakhudza kwambiri ma elekitirodi. Madera a Caustic okhala ndi ma ion ambiri oyipitsa, monga malo opangira madzi otayira, amatha kufulumizitsa poyizoni wa electrolyte. Izi zitha kuchitika mwachangu ndi oyesa otsika mtengo. Pakatha milungu ingapo, mita imatha kukhala yaulesi komanso yosasinthika. Mthumba wabwino pH mita idzakhala ndi ma elekitirodi odalirika omwe amapereka kuwerengera kokhazikika komanso kolondola nthawi zonse. Kusunga ma elekitirodi aukhondo komanso onyowa ndikofunikira kuti woyesa m'thumba azichita bwino komanso akhale ndi moyo wautali.
Single Junction Disposable pH Testers
Kwa ogwiritsa ntchito apo ndi apo oyesa pH omwe ali ndi pH yofunikira yamadzi wamba, ukadaulo wosavuta wogwiritsa ntchito electrode wagawo limodzi udzapereka mphamvu zambiri komanso kulondola. Ma elekitirodi a single-junction amakhala ndi moyo waufupi kuposa ma elekitirodi apawiri ndipo nthawi zambiri amagwiritsidwa ntchito poyesa pH komanso kuyesa kutentha. Sensa yosasinthika ya single-junction ili ndi kulondola kwa +0.1 pH. Iyi ndi njira yotsika mtengo ndipo nthawi zambiri imagulidwa ndi wogwiritsa ntchito ukadaulo wocheperako. Woyesayo akapandanso kuwerengera molondola, ingotayani ndikugula choyesa mthumba china. Zoyesa za single-junction disposable nthawi zambiri zimagwiritsidwa ntchito mu hydroponics, aquaculture, madzi amchere, ma aquariums, dziwe ndi spas, maphunziro, ndi misika yamaluwa.
Single-Junction Replaceable Electrode pH Testers
Gawo lokwera kuchokera pa choyesa chojambulira cha single-junction disposable tester ndi choyesa m'thumba cha single-junction, chomwe chitha kukwaniritsa kulondola kwa +0.01 pH. Woyesa uyu ndi woyenera ASTM Intl ambiri. ndi njira zoyesera za US EPA. Sensa imasinthidwa, kusunga unit, kotero ingagwiritsidwe ntchito mobwerezabwereza. Kusintha sensa ndi njira kwa wogwiritsa ntchito wamba yemwe amagwiritsa ntchito tester nthawi zonse. Chigawochi chikagwiritsidwa ntchito nthawi zonse ndipo zitsanzo zimakhala ndi ma ion ambiri omwe amawononga electrolyte mu electrode, zingakhale zopindulitsa kwambiri kupita ku mlingo wotsatira wa oyesa ndi teknoloji ya ma electrode awiri.
Mayeso a pH a Double-Junction Replaceable Electrode
Ukadaulo wapawiri-junction umapereka njira yayitali yosamuka kuti zonyansa ziyende, kuchedwetsa kuwonongeka komwe kumawononga ma elekitirodi a pH, kukulitsa ndi kukulitsa moyo wa unit. Pamaso kuipitsidwa angafike kwa elekitirodi, ayenera diffusing osati pa mphambano imodzi, koma mphambano ziwiri. Oyesa-junction awiri ndi olemetsa, oyesa apamwamba omwe amapirira zovuta kwambiri ndi zitsanzo. Atha kugwiritsidwa ntchito ndi madzi otayira, mayankho okhala ndi sulfide, zitsulo zolemera ndi ma buffer a Tris. Kwa makasitomala omwe amafunikira kubwereza mayeso awo a pH, kuwonetsa masensa kuzinthu zaukali kwambiri, ndikofunikira kugwiritsa ntchito choyesa chapawiri-junction kuti atalikitse moyo wa electrode ndikuwonetsetsa kulondola, komanso. Pakugwiritsa ntchito kulikonse, zowerengera zimasunthika ndikukhala osadalirika. Mapangidwe amitundu iwiri amatsimikizira kuti apamwamba kwambiri komanso ukadaulo umagwiritsidwa ntchito kuyeza milingo ya pH pamlingo woyenera wa +0.01 pH.
Calibration ndiyofunikira kuti ikhale yolondola. Si zachilendo kuti pH mita isunthike kuchoka pamakonzedwe ake ovomerezeka. Zikatero, zotsatira zake zimakhala zolakwika. Ndikofunika kulinganiza oyesa kuti apeze miyeso yolondola. Mamita ena a m'thumba a pH amakhala ndi chidziwitso chodziwikiratu, zomwe zimapangitsa kuwongolera kukhala kosavuta komanso kwachangu. Mitundu yambiri yotsika mtengo imafunikira kuwongolera pafupipafupi kuti muwonetsetse miyeso yolondola. Kuyesa kwa pH testers kuyenera kuchitika pafupipafupi, kulimbikitsidwa tsiku lililonse kapena kamodzi pa sabata. Sinthani mpaka mfundo zitatu pogwiritsa ntchito US kapena National Institute of Standards and Technology buffer set standards.
Oyesa m'thumba akhala akuyenda poyesa madzi m'zaka zingapo zapitazi, chifukwa ndi ophatikizika, osunthika, olondola ndipo amatha kuwerengera mumasekondi pang'ono ndikudina batani. Pamene msika woyesa ukupitiliza kufuna chisinthiko, opanga awonjezera zinthu monga nyumba zopanda madzi komanso zopanda fumbi kuti ziteteze oyesa ku malo amvula komanso kusagwira bwino. Kuonjezera apo, zowonetsera zazikulu, ergonomic zimapangitsa kuti kuwerenga kukhale kosavuta. Kulipiritsa kutentha kwadzidzidzi, chinthu chomwe nthawi zambiri chimasungidwa pamanja ndi ma benchtop metres, chinawonjezedwa kumitundu yaposachedwa. Mitundu ina imatha kuyeza ndi kuwonetsa kutentha kwenikweni. Zoyesa zapamwamba zimakhala ndi kukhazikika, kusanja ndi zizindikiro za batri pachiwonetsero ndikuzimitsa yokha kuti musunge moyo wa batri. Kusankha choyesa mthumba choyenera cha pulogalamu yanu kumakupatsani mwayi wodalirika komanso wolondola nthawi zonse.
Titha kukupatsiraninso masensa amtundu wamadzi omwe amayezera magawo ena osiyanasiyana kuti muwerenge
Nthawi yotumiza: Nov-12-2024