{"id":155123,"date":"2017-11-01T11:50:36","date_gmt":"2017-11-01T11:50:36","guid":{"rendered":"http:\/\/blog.hannaservice.eu\/povecanje-pouzdanosti-vasih-titracija-odredivanja-nikla-kroz-automatizaciju\/"},"modified":"2022-10-07T13:27:17","modified_gmt":"2022-10-07T13:27:17","slug":"povecanje-pouzdanosti-vasih-titracija-odredivanja-nikla-kroz-automatizaciju","status":"publish","type":"post","link":"https:\/\/blog.hannaservice.eu\/hr\/povecanje-pouzdanosti-vasih-titracija-odredivanja-nikla-kroz-automatizaciju\/","title":{"rendered":"Pove\u0107anje pouzdanosti va\u0161ih titracija odre\u0111ivanja nikla kroz automatizaciju"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"155123\" class=\"elementor elementor-155123 elementor-154769\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5097bcb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5097bcb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-82a8e26\" data-id=\"82a8e26\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b2de16c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b2de16c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0da46c7\" data-id=\"0da46c7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8ca8086 elementor-widget elementor-widget-text-editor\" data-id=\"8ca8086\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Automatski potenciometrijski titrator isplati se ve\u0107 u prvih nekoliko tjedana kori\u0161tenja uklanjanjem subjektivnosti, pove\u0107anjem to\u010dnosti, smanjenjem vremena testiranja, u\u0161tedom rada, smanjenjem kemijske potro\u0161nje i tro\u0161kova te pove\u0107anjem preciznosti analize kupke.<\/p>\n<h3>Uklonite subjektivnost zamjenom vizualnog testa sa sondom<\/h3>\n<p>Kori\u0161tenje indikatora boja za ru\u010dne titracije mo\u017ee biti brzo i jednostavno, ali postoji kompromis izme\u0111u vremena i to\u010dnosti. Pokazatelji boja su kemijske boje koje mijenjaju boju na temelju svojstava otopine.<\/p>\n<p>Ovi pokazatelji boja \u010desto se koriste tijekom ru\u010dnih titracija kao pokazatelj potro\u0161nje odre\u0111ene kemikalije ili prisutnosti kemikalije u vi\u0161ku. Promjena boje korelira s krajnjom to\u010dkom titracije.<\/p>\n<p>Ono \u0161to postaje zeznuto je gdje se ta promjena boje doga\u0111a s obzirom na vid tehni\u010dara. Pitanja poput \u201cKoliko je ru\u017ei\u010dasta ru\u017ei\u010dasta?\u201d ili \u201cNa kojoj nijansi naran\u010daste izme\u0111u \u017eute i crvene trebam stati?\u201d uobi\u010dajena su.<\/p>\n<p>Ovaj problem raste kada poku\u0161avate otkriti ovu promjenu boje u obojenom uzorku, kao \u0161to je zelena kupka nikla. Ove vrste uzoraka mogu biti izazovne \u010dak i za vje\u0161te laboratorijske analiti\u010dare da se dosljedno reproduciraju i gotovo su nemogu\u0107e za nekoga tko ne raspoznaje boje.<\/p>\n<h3>Na kojem principu se temelji potenciometrija<\/h3>\n<p>&nbsp;<\/p>\n<p align=\"center\"><img decoding=\"async\" class=\"lazyloaded\" title=\"Nersetova jednad\u017eba\" src=\"https:\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=146&amp;name=nerset-equation.gif\" sizes=\"(max-width: 146px) 100vw, 146px\" srcset=\"\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=73&amp;name=nerset-equation.gif 73w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=146&amp;name=nerset-equation.gif 146w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=219&amp;name=nerset-equation.gif 219w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=292&amp;name=nerset-equation.gif 292w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=365&amp;name=nerset-equation.gif 365w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nerset-equation.gif?t=1509453377700&amp;width=438&amp;name=nerset-equation.gif 438w\" alt=\"Nersetova jednad\u017eba\" width=\"146\" data-constrained=\"true\" data-ll-status=\"loaded\" \/><br \/>\n<em><sup>Slika 1: Nernstova jednad\u017eba omogu\u0107uje nam da koreliramo ionske aktivnosti s mjerljivim naponom.<\/sup><\/em><\/p>\n<p>Kori\u0161tenje preciznog potenciometrijskog sustava detekcije ne ostavlja prostora za naga\u0111anja.<\/p>\n<p>U potenciometrijskom mjernom sustavu odre\u0111uje se krajnja to\u010dka titracije na temelju promjene potencijala u otopini. Mjera\u010d i senzor to\u010dno odre\u0111uju potencijal milivolta (mV) otopine uzorka. Senzor, kao \u0161to je pH, ORP ili ionska selektivna elektroda, pona\u0161a se prema Nernstovoj jednad\u017ebi.<\/p>\n<p>Vrsta kori\u0161tenog senzora odredit \u0107e koji se ioni u otopini mjere. Unutarnji referentni potencijal elektrodne stanice uspore\u0111uje se s potencijalom vanjske membrane. Tijekom titracije, aktivnost iona koji se titrira mijenja se kako titracija napreduje. Krajnja to\u010dka titracije mo\u017ee se otkriti odre\u0111ivanjem to\u010dke u kojoj dolazi do maksimalne potencijalne promjene.<\/p>\n<h3>Kori\u0161tenje ion selektivnih elektroda za pra\u0107enje koncentracije nikla<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter lazyloaded\" title=\"Nickel Plating Bath Titration\" src=\"https:\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=400&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg\" sizes=\"(max-width: 400px) 100vw, 400px\" srcset=\"\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=200&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 200w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=400&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 400w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=600&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 600w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=800&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 800w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=1000&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 1000w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/plating-bath-blog01-800px-wide-optmzd.jpg?t=1509453377700&amp;width=1200&amp;name=plating-bath-blog01-800px-wide-optmzd.jpg 1200w\" alt=\"Nickel Plating Bath Titration\" width=\"400\" data-constrained=\"true\" data-ll-status=\"loaded\" \/>Nikal se mo\u017ee odrediti u oplatnim kupkama titracijom s EDTA-om, poput na\u0161eg EDTA 0,02M, 1L \u2013 HI70449. Kako se EDTA dodaje u uzorak, nikal postaje vezan; krajnja to\u010dka nastaje kada je nikal potpuno vezan EDTA-om.<\/p>\n<p>Titracija nikla mo\u017ee se odrediti potenciometrijski. Me\u0111utim, nikal je poseban slu\u010daj po tome \u0161to senzor za izravno otkrivanje ionske aktivnosti nije komercijalno dostupan. Umjesto toga, koncentracija nikla mo\u017ee se odrediti u titraciji pra\u0107enjem pomicanja bakra nikalom s ionom selektivnom elektrodom (ISE) za bakar.<\/p>\n<p>Prvo, pH uzorka je puferiran na pribli\u017eno pH 10. Zatim se uzorku dodaje mala koli\u010dina bakra EDTA (CuEDTA). Pri pH 10, nikal se preferencijalno ve\u017ee za EDTA, istiskuje bakar i rezultira slobodnim bakrenim ionima u otopini.<\/p>\n<p>Zatim titratiramo s EDTA-om. Kako titracija napreduje, EDTA prvo ve\u017ee ione nikla u otopini. Nakon \u0161to je sav nikal vezan, EDTA tada reagira sa slobodnim bakrenim ionima u otopini. Kada se to dogodi, aktivnost bakrenog iona drasti\u010dno se smanjuje, \u0161to otkriva ISE za bakar. To signalizira titratoru da otkrije krajnju to\u010dku.<\/p>\n<p>Potenciometrijom pratimo stvarnu aktivnost iona koji poku\u0161avamo izmjeriti, a ne gledati promjenu boje o\u010dima. Pra\u0107enje titracije na ovaj na\u010din omogu\u0107uje dosljedno pra\u0107enje reakcije koja eliminira subjektivnost i pove\u0107ava to\u010dnost i dosljednost me\u0111u analiti\u010darima.<\/p>\n<h2>Pove\u0107ajte preciznost pomo\u0107u automatskog doziranja<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter lazyloaded\" title=\"plating-bath-banner.jpeg\" src=\"https:\/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=400&amp;name=plating-bath-banner.jpeg\" sizes=\"(max-width: 400px) 100vw, 400px\" srcset=\"\/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=200&amp;name=plating-bath-banner.jpeg 200w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=400&amp;name=plating-bath-banner.jpeg 400w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=600&amp;name=plating-bath-banner.jpeg 600w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=800&amp;name=plating-bath-banner.jpeg 800w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=1000&amp;name=plating-bath-banner.jpeg 1000w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/plating-bath-banner.jpeg?t=1509453377700&amp;width=1200&amp;name=plating-bath-banner.jpeg 1200w\" alt=\"plating-bath-banner.jpeg\" width=\"400\" data-constrained=\"true\" data-ll-status=\"loaded\" \/><\/p>\n<p>Mogli bi se zapitati: \u201cZa\u0161to je to va\u017eno?\u201d Pa, dobivanje ponovljivosti izme\u0111u smjena i tehni\u010dara osigurava dosljedne kupke i kvalitetan proizvod. Rizik od ljudske pogre\u0161ke drasti\u010dno se smanjuje.<u><\/u><\/p>\n<p>Titracije rukom su zamorne i krajnja to\u010dka se lako mo\u017ee pretitrirati. Ru\u010dni \u010dep za birete mo\u017ee istovremeno ispu\u0161tati samo jednu kap (~ 50 \u03bcL), a i za to je potrebna vje\u0161tina. To nije slu\u010daj s automatskom titracijom. Automatski titrator mo\u017ee dozirati do 5 \u03bcL po dozi s ugra\u0111enom standardnom biretom od 25 ml, osiguravaju\u0107i da se krajnja to\u010dka precizno otkrije svaki put.<\/p>\n<p>Automatizacija tako\u0111er poma\u017ee pove\u0107ati to\u010dnost i ponovljivost bez gubljenja vremena. Koriste\u0107i prilagodljive i fleksibilne opcije doziranja koje nude mnogi automatski titratori, titrator promatra brzinu mV promjene tijekom titracije kako bi odredio brzinu i veli\u010dinu doziranja.<\/p>\n<p>Time \u0107e se ve\u0107e koli\u010dine \u010de\u0161\u0107e dozirati na po\u010detku titracije jer je potencijalna promjena mala. Kako se reakcija pribli\u017eava krajnjoj to\u010dki, mV potencijal po\u010dinje se dramati\u010dnije mijenjati po dozi. Kao rezultat toga, titrator proporcionalno smanjuje veli\u010dinu doze i pove\u0107ava vrijeme izme\u0111u doza.<\/p>\n<p>Doziranje ve\u0107eg volumena titranta na po\u010detku titracije, a manje na kraju, smanjuje brzinu svake titracije na minimum, osiguravaju\u0107i visoku rezoluciju oko krajnje to\u010dke. Automatizacija doziranja i otkrivanja krajnjih to\u010daka omogu\u0107uje analiti\u010darima obavljanje drugih laboratorijskih du\u017enosti.<\/p>\n<h2>Dokaz je u potenciometriji<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter lazyloaded\" title=\"Automatic Titration for Nickel Bath Samples\" src=\"https:\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=400&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg\" sizes=\"(max-width: 400px) 100vw, 400px\" srcset=\"\/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=200&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 200w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=400&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 400w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=600&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 600w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=800&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 800w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=1000&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 1000w, \/\/blog.hannainst.com\/hs-fs\/hubfs\/Blog\/plating\/nickel-plating-bath-increasing-reliability01-cropped.jpg?t=1509453377700&amp;width=1200&amp;name=nickel-plating-bath-increasing-reliability01-cropped.jpg 1200w\" alt=\"Automatic Titration for Nickel Bath Samples\" width=\"400\" data-constrained=\"true\" data-ll-status=\"loaded\" \/>Hanna Instruments nedavno je sura\u0111ivala s proizvo\u0111a\u010dem u pogonu za metalne oplate kako bi automatizirala titraciju kupke. Analiti\u010dari kontrole kvalitete izvodili su ru\u010dne titracije za mjerenje kiselosti u kromiranim kupkama, kao i kiselost i nikal u kupkama od nikla.<\/p>\n<p>Mnoge kupke imale su obojene matrice uzoraka kao \u0161to je tamna, mutna nijansa, pa je kupac bio prisiljen koristiti vrlo malu veli\u010dinu uzorka kako bi poku\u0161ao razlu\u010diti svoje krajnje to\u010dke pomo\u0107u pokazatelja boja. Ovo je velika ustanova, tako da vi\u0161e tehni\u010dara radi u laboratoriju.<\/p>\n<p>Budu\u0107i da su koristili indikator boja, njihovi rezultati titracije bili su otvoreni za tuma\u010denje izme\u0111u mnogih razli\u010ditih tehni\u010dara. Voditelj laboratorija primijetio je da dobivaju nedosljedne rezultate u smjenama, a to je rezultiralo nedosljednostima u njihovim gotovim proizvodima.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter lazyloaded\" title=\"HI902.jpg\" src=\"https:\/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=300&amp;name=HI902.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"\/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=150&amp;name=HI902.jpg 150w, \/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=300&amp;name=HI902.jpg 300w, \/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=450&amp;name=HI902.jpg 450w, \/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=600&amp;name=HI902.jpg 600w, \/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=750&amp;name=HI902.jpg 750w, \/\/blog.hannainst.com\/hs-fs\/hub\/2134380\/file-4146628838-jpg\/Blog\/blog-files\/HI902.jpg?t=1509453377700&amp;width=900&amp;name=HI902.jpg 900w\" alt=\"HI902.jpg\" width=\"300\" data-constrained=\"true\" data-ll-status=\"loaded\" \/><\/p>\n<p>Hanna Instruments sura\u0111ivala je s proizvo\u0111a\u010dem na automatizaciji njihovih ru\u010dnih titracija pomo\u0107u na\u0161eg\u00a0<a href=\"https:\/\/www.hannaservice.eu\/project\/automatic-potentiometric-phmvise-titration-system-hi902c\/\" target=\"_blank\" rel=\"noopener noreferrer\">automatskog potenciometrijskog titratora HI902<\/a>. Nakon \u0161to su titracije bile automatizirane, rezultati su postali dosljedni u razli\u010ditim smjenama i analiti\u010dari su mogli obavljati druge zadatke dok je titracija bila pokrenuta.<\/p>\n<p>To im je omogu\u0107ilo \u010de\u0161\u0107e izvo\u0111enje testova i odr\u017eavanje kvalitetnijih kupki, a istovremeno smanjenje koli\u010dine odba\u010denih gotovih proizvoda. Prije toga, laboratorij bi postao zatrpan uzorcima, zbog \u010dega bi zaposlenici morali ostati kasno ili \u017euriti kroz njih. Uzorci su titrirani zajedno s drugim analizama u djeli\u0107u vremena.<\/p>\n<h2>Titracijski paket Hanna Instruments<\/h2>\n<p>Automatski titrator Nikal Paket HI902 nudi sve \u0161to vam je potrebno za postizanje glatkog prijelaza s ru\u010dnih titracija na automatizirane titracije. Na\u0161 HI902 paket uklju\u010duje:<\/p>\n<ul>\n<li>Automatski potenciometrijski titrator HI902 s dva sklopa za mije\u0161anje i dvije klipne pumpe i birete u 40.000 koraka<\/li>\n<li>pH elektroda, ORP elektroda i ISE za bakar<\/li>\n<li>Titranti i reagensi za kiselost, hipofosfit i titracije nikla<\/li>\n<li>Kalibracijski puferi i otopine za odr\u017eavanje pH elektroda<\/li>\n<li>Instalacija i obuka na licu mjesta, uklju\u010duju\u0107i optimizaciju metoda na licu mjesta<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Automatski potenciometrijski titrator isplati se ve\u0107 u prvih nekoliko tjedana kori\u0161tenja uklanjanjem subjektivnosti, pove\u0107anjem to\u010dnosti, [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":154818,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[382],"tags":[],"class_list":["post-155123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrija-hr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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