{"id":9854,"date":"2022-02-28T11:26:01","date_gmt":"2022-02-28T11:26:01","guid":{"rendered":"https:\/\/cotslab.com\/jaky-je-rozdil-mezi-kremennou-a-sklenenou-kyvetou\/"},"modified":"2022-02-28T11:26:06","modified_gmt":"2022-02-28T11:26:06","slug":"jaky-je-rozdil-mezi-kremennou-a-sklenenou-kyvetou","status":"publish","type":"post","link":"https:\/\/cotslab.com\/cs\/jaky-je-rozdil-mezi-kremennou-a-sklenenou-kyvetou\/","title":{"rendered":"Jak\u00fd je rozd\u00edl mezi k\u0159emennou a sklen\u011bnou kyvetou?"},"content":{"rendered":"\n<p>Za\u010dn\u011bme na chv\u00edli zva\u017eov\u00e1n\u00edm n\u00e1sleduj\u00edc\u00edho sc\u00e9n\u00e1\u0159e: Je \u010das za\u010d\u00edt novou laboratorn\u00ed pr\u00e1ci. Nov\u00e9 metody, nov\u00ed spolupracovn\u00edci, nov\u00e9 vybaven\u00ed a hlavn\u011b nov\u00e9 sklen\u011bn\u00e9 kyvety! Ale po\u010dkat, tyto bu\u0148ky nejsou ozna\u010deny&#8230; Je to <a href=\"https:\/\/cotslab.com\/product-category\/products\/cuvettes\/all-cuvettes-and-cells\/quartz-cuvettes-190-2500-nm\/\">k\u0159emenn\u00e1 kyveta<\/a> nebo sklen\u011bn\u00fd materi\u00e1l?<\/p>\n\n<p>Neust\u00e1le dost\u00e1v\u00e1me hovory, jako je tento, od jednotlivc\u016f, kte\u0159\u00ed se sna\u017e\u00ed zjistit, jak\u00fd druh kyvetov\u00e9ho materi\u00e1lu pou\u017e\u00edvaj\u00ed. \u0158e\u010d obvykle prob\u00edh\u00e1 n\u011bjak takto:<\/p>\n\n<p>Cotslab: Dobr\u00fd den, FireflySci.<\/p>\n\n<p>V\u00fdzkumn\u00edk: Dobr\u00fd den, jsem v t\u00e9to laborato\u0159i nov\u00fd a v\u011b\u0159\u00edm, \u017ee m\u00e1m sklen\u011bnou kyvetu, ale \u017e\u00e1dnou krabici ani \u0161t\u00edtky na n\u00ed.<\/p>\n\n<p>Cotslab: Jsou na kyvet\u011b n\u011bjak\u00e9 stopy?<\/p>\n\n<p>V\u00fdzkumn\u00edk: Tyto kyvety se zdaj\u00ed b\u00fdt pom\u011brn\u011b star\u00e9, tak\u017ee mo\u017en\u00e1 doslou\u017eily.<\/p>\n\n<p>Cotslab: Nebojte se, vy\u0159e\u0161\u00edme to za v\u00e1s!<\/p>\n\n<p>A to je pr\u00e1v\u011b t\u00e9ma tohoto p\u0159\u00edsp\u011bvku. Poj\u010fme se tedy pod\u00edvat, jak krok za krokem zjistit, z jak\u00e9ho materi\u00e1lu se kyveta skl\u00e1d\u00e1.<\/p>\n\n<p>Krom\u011b plastu nyn\u00ed v\u0161echny kyvety vypadaj\u00ed stejn\u011b. Je t\u011b\u017ek\u00e9 ur\u010dit, zda je kyveta vyrobena z optick\u00e9ho skla, UV k\u0159emene nebo IR k\u0159emene pouh\u00fdm pohledem na ni. Ozna\u010dujeme v\u0161echny r\u016fzn\u00e9 p\u0159\u00edsady p\u0159\u00edmo na kyvet\u011b zde v Cotslabu. Pokud si u n\u00e1s zakoup\u00edte sklen\u011bnou kyvetu, bude bu\u0148ka ozna\u010dena \u201eG\u201c pro optick\u00e9 sklo. UV k\u0159emenn\u00e9 kyvety budou ozna\u010deny p\u00edsmenem \u201eQ\u201c, zat\u00edmco IR bu\u0148ky budou ozna\u010deny p\u00edsmenem \u201eI\u201c.<\/p>\n\n<h2>Co hledat ve <a href=\"https:\/\/cotslab.com\/product-category\/products\/cuvettes\/all-cuvettes-and-cells\/glass-cuvettes-350-2000-nm\/\">sklen\u011bn\u00e9 kyvet\u011b<\/a> ?<\/h2>\n\n<p>Va\u0161e kyveta tedy nem\u00e1 \u017e\u00e1dn\u00e1 p\u00edsmena, \u010d\u00edsla ani jin\u00e1 identifika\u010dn\u00ed ozna\u010den\u00ed. Chcete-li zjistit, zda je kyveta k\u0159emenn\u00e1 nebo sklen\u011bn\u00e1, um\u00edst\u011bte ji do spektrofotometru a prove\u010fte skenov\u00e1n\u00ed vlnov\u00e9 d\u00e9lky od 200 do 700 nm.<\/p>\n\n<ul><li>Jedn\u00e1 se o UV k\u0159emennou kyvetu, pokud p\u0159enos za\u010d\u00edn\u00e1 na 190 nm.<\/li><li>Jedn\u00e1 se o sklen\u011bnou kyvetu, pokud p\u0159enos za\u010d\u00edn\u00e1 na 340 nm.<\/li><li>Toto je IR k\u0159emenn\u00e1 kyveta, pokud p\u0159enos za\u010d\u00edn\u00e1 na 220 nm.<\/li><\/ul>\n\n<h2>K\u0159emenn\u00e9 vs. sklen\u011bn\u00e9 kyvety: Jak\u00fd je rozd\u00edl?<\/h2>\n\n<p>Toto je nejp\u0159esn\u011bj\u0161\u00ed technika, jak zjistit, z jak\u00e9ho materi\u00e1lu se kyveta skl\u00e1d\u00e1. N\u00ed\u017ee jsou uvedeny n\u011bkter\u00e9 dal\u0161\u00ed rozd\u00edly mezi k\u0159emenn\u00fdmi a sklen\u011bn\u00fdmi kyvetami:<\/p>\n\n<ul><li>K\u0159emen m\u00e1 \u0161ir\u0161\u00ed p\u0159enosov\u00fd rozsah ne\u017e sklo, jak m\u016f\u017eete vid\u011bt z v\u00fd\u0161e uveden\u00fdch skute\u010dnost\u00ed.<\/li><li>Tepeln\u00e9 vlastnosti &#8211; Teplota t\u00e1n\u00ed k\u0159emene je v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e u skla.<\/li><li>Chemick\u00e1 kompatibilita \u2014 Proto\u017ee k\u0159emen m\u00e1 siln\u011bj\u0161\u00ed chemickou strukturu ne\u017e sklo, m\u016f\u017ee tolerovat \u0161ir\u0161\u00ed \u0161k\u00e1lu l\u00e1tek, kter\u00e9 by mohly roztavit nebo po\u0161kodit sklen\u011bnou kyvetu.<\/li><li>Sklen\u011bn\u00e9 kyvety obzvl\u00e1\u0161t\u011b z\u00e1\u0159\u00ed, pokud jde o \u00fapravy. Kyvetu pyrex lze velmi jednodu\u0161e upravit a p\u0159ipojit. K\u0159emenn\u00e9 kyvety mohou b\u00fdt zm\u011bn\u011bny, ale je to podstatn\u011b slo\u017eit\u011bj\u0161\u00ed postup.<\/li><\/ul>\n\n<p>Pokud pot\u0159ebujete pomoc s identifikac\u00ed jak\u00fdchkoli kyvet, kter\u00e9 m\u00e1te po ruce, po\u0161lete n\u00e1m e-mail nebo \u017eiv\u00fd chat, nebo je ode\u0161lete do na\u0161\u00ed laborato\u0159e k anal\u00fdze.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Za\u010dn\u011bme na chv\u00edli zva\u017eov\u00e1n\u00edm n\u00e1sleduj\u00edc\u00edho sc\u00e9n\u00e1\u0159e: Je \u010das za\u010d\u00edt novou laboratorn\u00ed pr\u00e1ci. Nov\u00e9 metody, nov\u00ed spolupracovn\u00edci, nov\u00e9 vybaven\u00ed a hlavn\u011b nov\u00e9 sklen\u011bn\u00e9 kyvety! Ale po\u010dkat, tyto bu\u0148ky nejsou ozna\u010deny&#8230; Je to k\u0159emenn\u00e1 kyveta nebo sklen\u011bn\u00fd materi\u00e1l? Neust\u00e1le dost\u00e1v\u00e1me hovory, jako je tento, od jednotlivc\u016f, kte\u0159\u00ed se sna\u017e\u00ed zjistit, jak\u00fd druh kyvetov\u00e9ho materi\u00e1lu pou\u017e\u00edvaj\u00ed. \u0158e\u010d obvykle [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[500],"tags":[],"_links":{"self":[{"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/posts\/9854"}],"collection":[{"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/comments?post=9854"}],"version-history":[{"count":1,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/posts\/9854\/revisions"}],"predecessor-version":[{"id":9857,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/posts\/9854\/revisions\/9857"}],"wp:attachment":[{"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/media?parent=9854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/categories?post=9854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cotslab.com\/cs\/wp-json\/wp\/v2\/tags?post=9854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}