Tento \u010dl\u00e1nok poskytuje podrobn\u00e9 vysvetlenie met\u00f3d \u010distenia, su\u0161enia a pou\u017e\u00edvania laborat\u00f3rneho skla. Je rozdelen\u00fd do troch \u010dast\u00ed, aby sa u\u013eah\u010dilo jeho pochopenie a pou\u017e\u00edvanie.<\/p>\n\n\n\n
Z\u00e1kladn\u00e9 vysvetlenie met\u00f3dy um\u00fdvania trecou vodou.<\/em><\/p>\n\n\n\n Ak sa na vn\u00fatornej stene nach\u00e1dzaj\u00fa l\u00e1tky, ktor\u00e9 sa nedaj\u00fa \u013eahko odstr\u00e1ni\u0165, pou\u017eite na \u010distenie kefku. Postup zah\u0155\u0148a:<\/p>\n\n\n\n Ilustr\u00e1cia \u010distenia: (obr\u00e1zok ozna\u010den\u00fd \"Washing 2.1.png\")<\/strong><\/p>\n\n\n\n Po umyt\u00ed kefkou opl\u00e1chnite sklenen\u00fd riad nieko\u013ekon\u00e1sobn\u00fdm pretrepan\u00edm vodou. V pr\u00edpade potreby pou\u017eite na opl\u00e1chnutie trikr\u00e1t destilovan\u00fa vodu. V \u010distom stave sa voda rovnomerne rozpt\u00fdli bez vytvorenia kvapiek (ako je zn\u00e1zornen\u00e9 na \u013eavom obr\u00e1zku), zatia\u013e \u010do v ne\u010distom stave zostan\u00fa na povrchu kvapky vody (ako je zn\u00e1zornen\u00e9 na pravom obr\u00e1zku).<\/p>\n\n\n\n Ak sklenen\u00fd riad obsahuje l\u00e1tky nerozpustn\u00e9 vo vode, ako s\u00fa z\u00e1sady, uhli\u010ditany alebo z\u00e1sadit\u00e9 oxidy, pridajte najprv kyselinu chlorovod\u00edkov\u00fa, aby sa rozpustil, a potom ho opl\u00e1chnite vodou. Ak je pr\u00edtomn\u00e1 mastnota alebo olej, pou\u017eite hor\u00faci roztok uhli\u010ditanu sodn\u00e9ho a n\u00e1sledne ho o\u010distite kefou. Pr\u00edpadne pou\u017eite kefku s mal\u00fdm mno\u017estvom \u010distiaceho prostriedku. N\u00e1stroje s \u00fazkym hrdlom, ktor\u00e9 sa \u0165a\u017eko \u010distia kefkou, opl\u00e1chnite mal\u00fdm mno\u017estvom roztoku aqua regia alebo kyseliny chromovej. Ak tieto met\u00f3dy st\u00e1le zlyh\u00e1vaj\u00fa, namo\u010dte predmet do koncentrovanej\u0161ieho roztoku a potom opl\u00e1chnite vodou.<\/p>\n\n\n\n Bezpe\u010dnostn\u00e1 rada: Pred pridan\u00edm vody v\u017edy zlikvidujte odpadov\u00fa kvapalinu a vyhnite sa \u010disteniu viacer\u00fdch sk\u00famaviek s\u00fa\u010dasne.<\/strong> Vysvetlenie met\u00f3d su\u0161enia prirodzen\u00fdm vzduchom a su\u0161enia v su\u0161i\u010dke.<\/em><\/p>\n\n\n\n Vysvetlenie pou\u017e\u00edvania stla\u010den\u00e9ho vzduchu a ohriateho vzduchu na su\u0161enie.<\/em><\/p>\n\n\n\n Vysvetlenie techn\u00edk su\u0161enia zalo\u017een\u00fdch na pr\u00faden\u00ed vzduchu a r\u00fdchleho su\u0161enia.<\/em><\/p>\n\n\n\n N\u00e1vrh ilustr\u00e1cie: Zv\u00e1\u017ete pridanie jasn\u00fdch diagramov alebo fotografi\u00ed jednotliv\u00fdch met\u00f3d su\u0161enia, ktor\u00e9 pom\u00f4\u017eu pou\u017e\u00edvate\u013eom lep\u0161ie pochopi\u0165 rozdiely a praktick\u00e9 aplik\u00e1cie.<\/strong><\/p>\n\n\n\n Vysvetlenie pokynov na pou\u017e\u00edvanie odmeriek na kvapaliny s odmern\u00fdm valcom a odmern\u00fdm poh\u00e1rom.<\/em><\/p>\n\n\n\n Medzi bezpe\u010dnostn\u00e9 opatrenia pri pou\u017e\u00edvan\u00ed pipety patria:<\/p>\n\n\n\n N\u00e1vrh ilustr\u00e1cie: Uve\u010fte obr\u00e1zok zn\u00e1zor\u0148uj\u00faci spr\u00e1vny a nespr\u00e1vny sp\u00f4sob pou\u017eitia pipety.<\/strong><\/p>\n\n\n\n Kroky obsluhy zah\u0155\u0148aj\u00fa: \u010distenie \u2192 nanesenie vazel\u00edny \u2192 kontrolu tesnosti \u2192 naplnenie pracovn\u00fdm roztokom \u2192 odvzdu\u0161nenie byrety \u2192 titr\u00e1ciu.<\/p>\n\n\n\n Bezpe\u010dnostn\u00e1 rada: Pri pou\u017eit\u00ed vazel\u00edny na utesnenie sa uistite, \u017ee roztok nie je kontaminovan\u00fd, preto\u017ee by to mohlo ovplyvni\u0165 presnos\u0165 titr\u00e1cie.<\/strong><\/p>\n\n\n\n Pred pou\u017eit\u00edm odmernej banky skontrolujte, \u010di jej z\u00e1tka netesn\u00ed. Kvalifikovan\u00e1 z\u00e1tka by mala by\u0165 zaisten\u00e1 okolo hrdla f\u013ea\u0161e a nemala by sa svojvo\u013ene vymie\u0148a\u0165. Ak nad kalibra\u010dnou zna\u010dkou na vn\u00fatornej stene zostan\u00fa kvapky vody, m\u00f4\u017ee to ovplyvni\u0165 presnos\u0165, preto sa banka mus\u00ed d\u00f4kladne vy\u010disti\u0165. Ak\u00e9ko\u013evek pevn\u00e9 l\u00e1tky, ktor\u00e9 sa maj\u00fa zv\u00e1\u017ei\u0165, sa musia najprv rozpusti\u0165 v malej kadi\u010dke a potom po ochladen\u00ed na izbov\u00fa teplotu prenies\u0165 do odmernej banky. Banka by sa nikdy nemala zahrieva\u0165 ani su\u0161i\u0165 v su\u0161i\u010dke.<\/p>\n\n\n\n N\u00e1vrh ilustr\u00e1cie: Dopl\u0148te obr\u00e1zok, ktor\u00fd demon\u0161truje spr\u00e1vnu techniku mie\u0161ania roztoku v odmernej banke.<\/strong><\/p>\n\n\n\n \u010eal\u0161\u00ed tip: Uistite sa, \u017ee v\u0161etky volumetrick\u00e9 oper\u00e1cie sa vykon\u00e1vaj\u00fa pri izbovej teplote, aby sa zachovala presnos\u0165 roztoku.<\/strong><\/p>","protected":false},"excerpt":{"rendered":" This article provides a detailed explanation of the cleaning, drying, and usage methods for laboratory glassware. It is divided into three parts to facilitate understanding and application. I. Cleaning of Glassware 1. Shaking Water Wash Basic explanation of the shaking water wash method. 2. Brushing for Stubborn Stains If there are substances on the inner […]<\/p>\n","protected":false},"author":3,"featured_media":5538,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"25","_seopress_titles_title":"Cleaning, Drying, and Use of Laboratory Glassware Explained","_seopress_titles_desc":"Learn essential methods for cleaning, drying, and using lab glassware, including pipettes, burettes, and flasks, ensuring accuracy and safety in lab work.","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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Casper","author_link":"https:\/\/globalquartztube.com\/sk\/author\/casper-peng\/"},"uagb_comment_info":0,"uagb_excerpt":"This article provides a detailed explanation of the cleaning, drying, and usage methods for laboratory glassware. It is divided into three parts to facilitate understanding and application. I. Cleaning of Glassware 1. Shaking Water Wash Basic explanation of the shaking water wash method. 2. Brushing for Stubborn Stains If there are substances on the inner…","authors":[{"term_id":13,"user_id":3,"is_guest":0,"slug":"casper-peng","display_name":"Peng, Casper","avatar_url":{"url":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp","url2x":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":""}],"_links":{"self":[{"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/posts\/5535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/comments?post=5535"}],"version-history":[{"count":1,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/posts\/5535\/revisions"}],"predecessor-version":[{"id":5539,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/posts\/5535\/revisions\/5539"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/media\/5538"}],"wp:attachment":[{"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/media?parent=5535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/categories?post=5535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/tags?post=5535"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/globalquartztube.com\/sk\/wp-json\/wp\/v2\/ppma_author?post=5535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}2. \u010cistenie odoln\u00fdch \u0161kv\u0155n kefkou<\/h4>\n\n\n\n
\n
3. Z\u00e1vere\u010dn\u00e9 opl\u00e1chnutie<\/h4>\n\n\n\n
\u010eal\u0161ie bezpe\u010dnostn\u00e9 upozornenie: Pri manipul\u00e1cii s koroz\u00edvnymi roztokmi, ako je kyselina chlorovod\u00edkov\u00e1 alebo aqua regia, pou\u017e\u00edvajte ochrann\u00e9 rukavice a ochrann\u00e9 okuliare, aby ste predi\u0161li poraneniu poko\u017eky alebo o\u010d\u00ed.<\/strong><\/p>\n\n\n\nII. Su\u0161enie sklenen\u00fdch v\u00fdrobkov<\/h3>\n\n\n\n
1. Su\u0161enie na vzduchu (\u013eav\u00fd obr\u00e1zok) vs. su\u0161enie v peci (prav\u00fd obr\u00e1zok)<\/h4>\n\n\n\n
2. Su\u0161enie f\u00fakan\u00edm (\u013eav\u00fd obr\u00e1zok) vs. su\u0161enie s ohrevom (prav\u00fd obr\u00e1zok)<\/h4>\n\n\n\n
3. Su\u0161enie pr\u00fadom vzduchu (\u013eav\u00fd obr\u00e1zok) vs. r\u00fdchle su\u0161enie (prav\u00fd obr\u00e1zok)<\/h4>\n\n\n\n
III. Pou\u017e\u00edvanie be\u017en\u00e9ho skla<\/h3>\n\n\n\n
1. Odmern\u00fd valec a odmerka<\/h4>\n\n\n\n
2. Pipeta<\/h4>\n\n\n\n
\n
3. Byreta<\/h4>\n\n\n\n
4. Objemov\u00e1 banka<\/h4>\n\n\n\n