{"id":68113,"date":"2022-02-21T10:36:48","date_gmt":"2022-02-21T02:36:48","guid":{"rendered":"https:\/\/qvarz.com\/por-que-celulas-muradas-pretas\/"},"modified":"2022-02-21T10:37:14","modified_gmt":"2022-02-21T02:37:14","slug":"por-que-celulas-muradas-pretas","status":"publish","type":"post","link":"https:\/\/qvarz.com\/pt-pt\/por-que-celulas-muradas-pretas\/","title":{"rendered":"Por que c\u00e9lulas muradas pretas?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Por que \u00e9 uma boa ideia usar cuvetes auto-mascarados&#8230;<\/p>\n\n<p class=\"wp-block-paragraph\">Este artigo explica por que \u00e9 importante usar c\u00e9lulas muradas pretas para trabalhos de baixo volume. Fizemos esta experi\u00eancia num Varian Cary 500 h\u00e1 alguns anos para demonstrar isto. A experi\u00eancia:<\/p>\n\n<ol class=\"wp-block-list\"><li>Pegue num chemcal vis\u00edvel e est\u00e1vel adequado e coma uma solu\u00e7\u00e3o para lhe dar uma medi\u00e7\u00e3o m\u00e1xima de absorv\u00e2ncia de 3+ absorv\u00e2ncia. Neste caso, usei Starna Green dilu\u00edda, medida a 428 nm, com um SBW de 1,0 nm.<\/li><li>Chame este &#8216;100&#8217; como um padr\u00e3o de topo &#8211; e em s\u00e9rie diluir-se para produzir &#8217;75&#8217;, &#8217;50&#8217; e &#8217;25&#8217;, respectivamente.<\/li><li>Usando uma c\u00e9lula de parede clara <a href=\"https:\/\/qvarz.com\/product\/vaobs1-0-35ml-semi-micro-cuvette-ptfe-lid-bonded-width-1mm-black-walls\/\">VAOBS1 <\/a>&#8211; encha com \u00e1gua e zero o Cary.<\/li><li>Remedibrar o espa\u00e7o em branco, e depois cada padr\u00e3o por sua vez.<\/li><li>Repita 3 e 4 utilizando uma c\u00e9lula murada preta VAOBM1.<\/li><li>Plot, e compare a resposta linear &#8216;Beer-Lambert&#8217;!<\/li><\/ol>\n<p class=\"wp-block-paragraph\"><strong>Como as caracter\u00edsticas \u00f3ticas das c\u00e9lulas afetam a medi\u00e7\u00e3o qu\u00edmica<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">1. Usando a c\u00e9lula de parede clara VAOBS1- Com esta evid\u00eancia, acho que n\u00e3o gostaria de usar este tipo de c\u00e9lula (sem qualquer m\u00e1scara) para medir mais de 0,5 A?<\/p>\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Clara Parede<\/td><td><\/td><td>Em branco corrigido<\/td><td><\/td><\/tr><tr><td>0<\/td><td>0.0004<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>25<\/td><td>0.8177<\/td><td>25<\/td><td>0.8173<\/td><\/tr><tr><td>50<\/td><td>1.473<\/td><td>50<\/td><td>1.4726<\/td><\/tr><tr><td>75<\/td><td>1.8064<\/td><td>75<\/td><td>1.806<\/td><\/tr><tr><td>100<\/td><td>1.8999<\/td><td>100<\/td><td>1.8995<\/td><\/tr><\/tbody><\/table><\/figure>\n<p class=\"wp-block-paragraph\">2. Utiliza\u00e7\u00e3o da c\u00e9lula de parede preta <a href=\"https:\/\/qvarz.com\/product\/vaobm1-0-35ml-semi-micro-cuvette-ptfe-lid-bonded-width-1mm-2-windows\/\">VAOBM1 <\/a>&#8211; que diferen\u00e7a! Restabelecei a minha f\u00e9 na minha experi\u00eancia anal\u00edtica &#8211; a s\u00e9rie 0 &#8211; 75 (2,5 A) \u00e9 uma linha reta perfeita (linearidade = 1). A linearidade a 3.3 (100) tamb\u00e9m n\u00e3o \u00e9 m\u00e1 em 0,9993, mas voc\u00ea est\u00e1 come\u00e7ando a ver as caracter\u00edsticas de luz desviada do instrumento Cary 500 neste momento.<\/p>\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Paredes Pretas<\/td><td><\/td><td>Em branco corrigido<\/td><td><\/td><\/tr><tr><td>0<\/td><td>0.0004<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>25<\/td><td>0.8508<\/td><td>25<\/td><td>0.8505<\/td><\/tr><tr><td>50<\/td><td>1.7149<\/td><td>50<\/td><td>1.7145<\/td><\/tr><tr><td>75<\/td><td>2.5611<\/td><td>75<\/td><td>2.5607<\/td><\/tr><tr><td>100<\/td><td>3.3106<\/td><td>100<\/td><td>3.3103<\/td><\/tr><\/tbody><\/table><\/figure>\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"i0.wp.com\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"635\" height=\"279\" src=\"\/\/i0.wp.com\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells.jpg\" alt=\"\" class=\"wp-image-67522\" title=\"\" srcset=\"https:\/\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells.jpg 635w, https:\/\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells-90x40.jpg 90w, https:\/\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells-600x264.jpg 600w, https:\/\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells-64x28.jpg 64w, https:\/\/qvarz.com\/wp-content\/uploads\/2022\/02\/Why-Black-walled-Cells-300x132.jpg 300w\" sizes=\"(max-width: 635px) 100vw, 635px\" \/><\/a><\/figure><\/div>\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Paredes Pretas<\/td><td>Clara Parede<\/td><td><\/td><td>Diferen\u00e7a<\/td><td>% diferen\u00e7a.<\/td><\/tr><tr><td>0<\/td><td>0<\/td><td>0<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>0.8505<\/td><td>0.8173<\/td><td>25<\/td><td>0.0331<\/td><td>3.9<\/td><\/tr><tr><td>1.7145<\/td><td>1.4726<\/td><td>50<\/td><td>0.242<\/td><td>14.1<\/td><\/tr><tr><td>2.5607<\/td><td>1.806<\/td><td>75<\/td><td>0.7547<\/td><td>29.5<\/td><\/tr><tr><td>3.3103<\/td><td>1.8995<\/td><td>100<\/td><td>1.4108<\/td><td>42.6<\/td><\/tr><\/tbody><\/table><\/figure>\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Por que \u00e9 uma boa ideia usar cuvetes auto-mascarados&#8230; Este artigo explica por que \u00e9 importante usar c\u00e9lulas muradas pretas para trabalhos de baixo volume. Fizemos esta experi\u00eancia num Varian Cary 500 h\u00e1 alguns anos para demonstrar isto. A experi\u00eancia: Pegue num chemcal vis\u00edvel e est\u00e1vel adequado e coma uma solu\u00e7\u00e3o para lhe dar uma<\/p>\n<div class=\"klb-readmore entry-button\"><a class=\"button\" href=\"https:\/\/qvarz.com\/pt-pt\/por-que-celulas-muradas-pretas\/\">Read More<\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","ub_ctt_via":"","footnotes":""},"categories":[839,827],"tags":[],"class_list":["post-68113","post","type-post","status-publish","format-standard","hentry","category-cuvettes-e-celulas","category-todos-os-posts"],"featured_image_src":null,"author_info":{"display_name":"admin","author_link":"https:\/\/qvarz.com\/pt-pt\/author\/admin\/"},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"bacola-woo-product":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"variation_swatches_image_size":false,"variation_swatches_tooltip_size":false,"dgwt-wcas-product-suggestion":false},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/qvarz.com\/pt-pt\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"Por que \u00e9 uma boa ideia usar cuvetes auto-mascarados&#8230; Este artigo explica por que \u00e9 importante usar c\u00e9lulas muradas pretas para trabalhos de baixo volume. Fizemos esta experi\u00eancia num Varian Cary 500 h\u00e1 alguns anos para demonstrar isto. A experi\u00eancia: Pegue num chemcal vis\u00edvel e est\u00e1vel adequado e coma uma solu\u00e7\u00e3o para lhe dar umaRead&hellip;","_links":{"self":[{"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/posts\/68113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=68113"}],"version-history":[{"count":1,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/posts\/68113\/revisions"}],"predecessor-version":[{"id":68114,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/posts\/68113\/revisions\/68114"}],"wp:attachment":[{"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=68113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/categories?post=68113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qvarz.com\/pt-pt\/wp-json\/wp\/v2\/tags?post=68113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}