Litaba tsa polokeho ea lijo li amana le bophelo bo botle ba motho e mong le e mong, kahoo e 'nile ea e-ba ntho eo sechaba se e tsepamisitseng maikutlo kamehla. Haholo-holo lilemong tsa morao tjena, ka maemo a ruileng a lintho tse bonahalang a batho le ntlafatso e tsoelang pele ea maemo a bophelo, tlhoko ea liteko tsa lijo e ntse e eketseha.

Ha e le hantle, mosebetsi oa ho hlahloba lijo le ho latela mokhoa oa ho li latela o arotsoe ka mekhahlelo e 'meli: e 'ngoe ke ea lintho tsa bohloeki, 'me e 'ngoe ke ea lintho tsa boleng.

Leha ho le jwalo, ho sa tsotelehe hore na ke mofuta ofe, ho a hlokahala ho netefatsa ho nepahala ha diphetho tsa teko, ho seng jwalo ho ke ke ha kgoneha ho ntshetsa pele tlhahlobo le pontsho e nngwe. Ho feta moo, ntle le disampole tse lokelang ho lekoa, haeba ho na le bothata ka metsi, di-reagent, kapa dijana tsa khalase nakong ya tlhahlobo ya dijo laboratoring, bonnete ba diphetho tsa teko ya dijo bo tla belaellwa.

Mehato ea motheo ea tlhahlobo ea polokeho ea lijo

Teko ea polokeho ea lijo ke tšebeliso ea likhopolo-taba tsa motheo le mekhoa ea botekgeniki ho kenyeletsoa fisiks, k'hemistri, baeloji le mafapha a mang ho hlahloba, ho fumana le ho sekaseka metsoako ea mantlha, boemo le boemo ba likokoana-hloko tsa thepa e tala, thepa e thusang, lihlahisoa tse sa phethoang hantle, lihlahisoa tse felileng le lihlahisoa tse ling. Mehato ea mantlha e kenyelletsa:

① Bokella disampole: netefatsa morero oa teko, etsa sekala sa teko le lintho tse itseng tsa ho nka sampole.

② Ho lokisa disampole: Kenya disampole tse tsamaisitsweng ka hara dibotlolo tse hlwekileng tsa sampole, mme o tshwaye dibotlolo tsa sampole ho ya ka dinomoro tse thathamisitsweng disampoleng. Matshwao a entsweng a lokela ho kgona ho hlwaya boemo ba tlhahlobo ya sampole. Lokisa ho sebetsana le sampole pele ho lokisa mothapo wa sampole le tharollo ya ho lemoha sampole.

③Mehlala ea liteko: Ka thuso ea lisebelisoa tse amanang, li-reagent kapa litharollo tse tloaelehileng le tharollo ea liteko li tla lekoa ka nako e le 'ngoe. Kamora ho bala liphetho tsa liteko le ho fumana lirekoto tsa pele, tlaleho ea liteko e ka ngoloa.

Mokgweng ona, metsi, di-reagent le dijana tsa khalase di phetha karolo e fapaneng.

Metsi: Metsi a hloekileng a lokisitsoeng ka ho khetheha le metsi a hloekisitsoeng ke karolo ea bohlokoa ts'ebetsong ea tlhahlobo ea lijo. Ka kakaretso linthong tsa liteko, tse kang ho lokisa reagent le mohato oa ts'ebetso ea liteko, sebelisa metsi a tloaelehileng a hloekisitsoeng e le khetho e ka sehloohong. Hoa bohlokoa ho hlokomela hore ha ho etsoa qeto ea karolo e itseng ea mohlala, kutloisiso ea metsi a hloekisitsoeng e hloka ho sebetsoa hape pele a ka kena mohatong o latelang oa tlhahlobo ea lijo.

Li-reagent: Li-reagent tse tekong li lokela ho sebelisoa ka nepo ho ama ka kotloloho mahlale le ho nepahala ha liphetho tsa tlhahlobo ea lijo. Tlhokomelo e khethehileng e lokela ho lefshoa bophelong ba shelefo ea li-reagent tsa lik'hemik'hale. Ho hlaka le boleng li hloka ho lekanyetsoa khafetsa, 'me tšebeliso ea li-reagent tsa lik'hemik'hale tse seng li felile e thibetsoe, ho seng joalo e tla ama ho nepahala ha phello ea ho lemoha. Ho phaella moo, ho beha tharollo ka tatellano e nepahetseng ho latela litlhaloso tse amehang ho ka fokotsa kotsi ea ho hloleha ha li-reagent.

Disebediswa tsa khalase: Hona jwale, dibotlolo tsa khalase kapa dihlahiswa tsa polyethylene di sebediswa haholoholo dijaneng tsa teko ya dijo, tse ka sebediswang ho boloka dithethefatsi, ho tsamaisa dithethefatsi, le ho leka dithethefatsi. Jwalo ka di-tube tsa teko, di-beakers, di-volumetric flasks, di-beakers tsa boima le di-flasks tsa Erlenmeyer. Empa ntho ya bohlokwa ka ho fetisisa ke ho netefatsa hore bohloeki le ho se dutle ha disebediswa tsena tsa khalase di latela maemo le ditlhaloso tse amehang. Ka hona, setshelo sa sehlahiswa sa teko se tlameha ho hlatsuwa le ho hlwekiswa hantle pele se sebediswa ho netefatsa hore ha ho na ditshila tse setseng. Karolo ya disebediswa tsa khalase e batla e le dikarolong tsohle tsa bohlokwa tsa tlhahlobo ya dijo.

Ke tšilafalo efe e setseng e atisang ho hlaha litekong tsa lijo? Na e ka hloekisoa?

Morero ofe kapa ofe oa teko ea lijo o tla hlahisa litšila tse setseng ka har'a lijana tsa khalase, joalo ka limela tsa likokoana-hloko, masala a chefo e bolaeang likokoanyana, formaldehyde, litšepe tse boima, liprotheine, li-additives tsa lijo, li-fortifier tsa phepo e nepahetseng, masala a reagent tekong ea teko, Sesebelisoa sa ho hlatsoa nakong ea ho hloekisa, jj. Ka hona, lisebelisoa tsa khalase li tlameha ho hloekisoa pele ho tšebeliso e latelang. Empa ts'ebetso ena ha e felle feela ho hloekisoeng ka letsoho. Ka lebaka la bongata bo boholo, mefuta e fapaneng, khaello ea basebetsi, le nako e thata, ha re shebeng melemo eamochini o hlatsoang oa laboratorie hlahisitsoe ke Hangzhou Xipingzhe Instruments Technology Co., Ltd? Mohlala, phello ea ho hloekisa ha e tšepahale feela ebile e nepahetse ho feta ho hloekisa ka letsoho, empa hape e ka rekotoa, ea netefatsoa, ​​​​'me ea phetoa! E kopantsoe le bohlalemochini o hlatsoang oa khalase o iketsangHo laola ts'ebetso ea ho hloekisa, ho thusa haholo ntlafatsong e akaretsang ea katleho ea teko eohle ea liteko tsa lijo le netefatso ea polokeho.

Ka bokhutšoanyane, ho ntlafatsa ho nepahala ha liphetho tsa liteko tsa lijo ke tataiso eo indasteri ea liteko tsa lijo e tsoelang pele ho e fihlela. Ho etsa hore liphetho tsa tlhahlobo ea polokeho ea lijo li lumellane le lintlha tsa 'nete tsa liteko, metsi afe kapa afe, li-reagent le lisebelisoa tsa khalase ke tsa bohlokoa haholo. Haholo-holo, ho hloekisoa hamochini o hlatsoang lijana tsa khalasee ka ntlafatsa bohloeki ka ho tswela pele ho fihlela maemo a lebelletsweng a diteko tsa diteko tsa dijo. Ke ka tsela ena feela e ka sebediswang ka katleho e le motheo wa tshupiso o nang le sepheo le o nepahetseng. Ke tshepa hore bahlahlobi ba dijo ba tla hopola sena, mme ba se ke ba dumella mosebetsi wa tlhahlobo ya polokeho ya dijo ho hloleha kapa ho senyeha ka lebaka la ho hlwekisa dijana tsa khalase.