{"id":3076,"date":"2021-12-13T13:17:10","date_gmt":"2021-12-13T13:17:10","guid":{"rendered":"https:\/\/convet.net\/espectroscopia-nir-tecnica-danalisi\/"},"modified":"2022-03-18T09:57:22","modified_gmt":"2022-03-18T09:57:22","slug":"espectroscopia-nir-tecnica-danalisi","status":"publish","type":"post","link":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/","title":{"rendered":"Espectrosc\u00f2pia Nir: T\u00e8cnica d’An\u00e0lisi"},"content":{"rendered":"

Qu\u00e8 \u00e9s l’espectrosc\u00f2pia NIRS, els seus fonaments te\u00f2rics i qu\u00e8 oferim.<\/strong><\/h2>\n

<\/p>\n

L’ espectroscopia<\/strong> NIRS<\/strong> (Near Infrared<\/strong> Reflectance<\/strong> Spectroscopy<\/strong> ) \u00e9s una t\u00e8cnica<\/strong> anal\u00edtica<\/strong> .<\/strong> <\/p><\/blockquote>\n

    \n
  • \u00c9s una t\u00e8cnica actualment en expansi\u00f3 gr\u00e0cies al creixent inter\u00e8s per millorar la qualitat dels productes. \u00c9s indispensable a l’estudi de la tra\u00e7abilitat al llarg de la cadena de producci\u00f3.<\/li>\n
  • En conseq\u00fc\u00e8ncia, l’an\u00e0lisi qu\u00edmica convencional de vegades cal substituir-la per t\u00e8cniques<\/strong> anal\u00edtiques<\/strong> \u00e0gils<\/strong> que<\/strong> minimitzen<\/strong> aquest<\/strong> cost i temps.<\/strong><\/li>\n
  • La tecnologia NIRS<\/strong> \u00e9s<\/strong> una t\u00e8cnica no destructiva<\/strong> . Ens permet obtenir l’an\u00e0lisi quantitativa o qualitativa en pinsos i mat\u00e8ries primeres de diferents par\u00e0metres anal\u00edtics. Parlem de par\u00e0metres com ara: prote\u00efna, fibra, greix, cendra, humitat, mid\u00f3, etc.<\/li>\n
  • Podem obtenir el resultat de l’an\u00e0lisi en aproximadament un minut sense necessitat de m\u00f2ltar la mostra.<\/li>\n
  • Totes aquestes caracter\u00edstiques fan que l’espectroscopia NIR ofereixi gran quantitat d’avantatges davant d’altres t\u00e8cniques anal\u00edtiques al control de la qualitat at-line.<\/li>\n<\/ul>\n

    Espectrosc\u00f2pia NIRS: Fonament te\u00f2ric del NIRS<\/strong><\/h2>\n
      \n
    • La mostra (en estat s\u00f2lid o l\u00edquid) \u00e9s irradiada a diferents longituds d’ona<\/strong> . A NIRS, aquestes longituds d’ona es troben localitzades entre el visible i l’infraroig proper (578 i 1842 nm).<\/li>\n
    • Aquesta radiaci\u00f3 \u00e9s absorbida per la mostra, produint la vibraci\u00f3 dels enlla\u00e7os carboni-hidrogen (CH), oxigen-hidrogen (OH) i nitrogen-hidrogen (NH), que s\u00f3n els principals constituents de l’estructura b\u00e0sica de les subst\u00e0ncies org\u00e0niques.<\/li>\n
    • Aquestes vibracions constitueixen un conjunt de valors a diferents longituds d’ona que donen lloc a un espectre caracter\u00edstic de cada mostra que es pot considerar la seva empremta dactilar.<\/li>\n
    • L’espectre queda emmagatzemat i registrat en un processador<\/strong> per al tractament matem\u00e0tic posterior.<\/li>\n
    • Per desenvolupar un calibratge NIRS, cal relacionar mitjan\u00e7ant algorismes la informaci\u00f3 que ens facilita l’espectre amb la informaci\u00f3 que ens proporciona l’an\u00e0lisi de les mostres esmentades per via humida, utilitzant m\u00e8todes convencionals.<\/li>\n
    • Aquesta relaci\u00f3 \u00e9s possible gr\u00e0cies a l’aplicaci\u00f3 de models estad\u00edstics com la tornada<\/strong> simple<\/strong> , components principals i<\/strong> m\u00ednims quadrats<\/strong> .<\/strong> Com que la interacci\u00f3 de l’energia amb la mat\u00e8ria obeeix a la llei de Lambert-Beer, on l’absorb\u00e0ncia a qualsevol longitud d’ona \u00e9s proporcional al nombre o la concentraci\u00f3 de mol\u00e8cules absorbents en el cam\u00ed recorregut per la radiaci\u00f3.<\/li>\n<\/ul>\n

      Convet, des del seu departament de calibratge NIR, ofereix:<\/strong><\/h2>\n
        \n
      • An\u00e0lisi<\/strong> de pinsos<\/strong> i<\/strong> mat\u00e8ries primeres in situ i de forma immediata.<\/li>\n
      • Instal\u00b7laci\u00f3<\/strong> , verificaci\u00f3<\/strong> de<\/strong> calibratges<\/strong> .<\/strong> Si disposeu d’un instrument NIR per al control de qualitat a les vostres instal\u00b7lacions, podem instal\u00b7lar les equacions adequades i controlar la precisi\u00f3 de les lectures.<\/li>\n
      • Desenvolupament de calibratges<\/strong>. De vegades, el sector introdueix noves mat\u00e8ries primeres com a resposta a les fluctuacions econ\u00f2miques del sector. Convet, pot desenvolupar noves equacions que s’adaptin a les necessitats de cada empresa. El desenvolupament d’un calibratge dep\u00e8n dels par\u00e0metres a calibrar (prote\u00efna, fibra\u2026). Un cop definits, es necessiten entre 60 \u2013 70 mostres analitzades per via humida. de cadascun dels par\u00e0metres sol\u00b7licitats que s’instal\u00b7la a l’instrument per a la seva an\u00e0lisi en rutina.<\/li>\n<\/ul>\n
          \n
        • Manteniment de calibratges.<\/strong> Els calibratges necessiten un manteniment. La periodicitat del manteniment ser\u00e0 com a m\u00ednim anual encara que si, en algun moment, s’observa certa dispersi\u00f3 en els rangs anal\u00edtics (SEP alt, valors de GH alts, etc\u2026) caldr\u00e0 procedir a un ajustament del calibratge .Convet, per assegurar el correcte manteniment dels calibratges ofereix un servei complet de tractament dels espectres generats. Tamb\u00e9 ofereix tractament dels espectres \u201coutliers\u201d i ajustaments del calibratge mitjan\u00e7ant enviament de patrons de verificaci\u00f3 (cada 4 mesos) i de forma remota.<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Qu\u00e8 \u00e9s l’espectrosc\u00f2pia NIRS, els seus fonaments te\u00f2rics i qu\u00e8 oferim.<\/p>\n","protected":false},"author":2,"featured_media":2912,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-3076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-veterinaria-ca","category-19","description-off"],"yoast_head":"\nEspectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Espectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado\" \/>\n<meta property=\"og:description\" content=\"Qu\u00e8 \u00e9s l’espectrosc\u00f2pia NIRS, els seus fonaments te\u00f2rics i qu\u00e8 oferim.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/\" \/>\n<meta property=\"og:site_name\" content=\"Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-13T13:17:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-18T09:57:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"360\" \/>\n\t<meta property=\"og:image:height\" content=\"356\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"bmarcet\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrit per\" \/>\n\t<meta name=\"twitter:data1\" content=\"bmarcet\" \/>\n\t<meta name=\"twitter:label2\" content=\"Temps estimat de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minuts\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/\",\"url\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/\",\"name\":\"Espectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado\",\"isPartOf\":{\"@id\":\"https:\/\/convet.net\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg\",\"datePublished\":\"2021-12-13T13:17:10+00:00\",\"dateModified\":\"2022-03-18T09:57:22+00:00\",\"author\":{\"@id\":\"https:\/\/convet.net\/#\/schema\/person\/2f16d127c56c3b26f6811abb236d8b29\"},\"breadcrumb\":{\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#breadcrumb\"},\"inLanguage\":\"ca\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ca\",\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage\",\"url\":\"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg\",\"contentUrl\":\"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg\",\"width\":360,\"height\":356},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/convet.net\/ca\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Espectrosc\u00f2pia Nir: T\u00e8cnica d’An\u00e0lisi\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/convet.net\/#website\",\"url\":\"https:\/\/convet.net\/\",\"name\":\"Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado\",\"description\":\"Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/convet.net\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ca\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/convet.net\/#\/schema\/person\/2f16d127c56c3b26f6811abb236d8b29\",\"name\":\"bmarcet\",\"url\":\"https:\/\/convet.net\/ca\/author\/bmarcet\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Espectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/","og_locale":"ca_ES","og_type":"article","og_title":"Espectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","og_description":"Qu\u00e8 \u00e9s l’espectrosc\u00f2pia NIRS, els seus fonaments te\u00f2rics i qu\u00e8 oferim.","og_url":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/","og_site_name":"Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","article_published_time":"2021-12-13T13:17:10+00:00","article_modified_time":"2022-03-18T09:57:22+00:00","og_image":[{"width":360,"height":356,"url":"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg","type":"image\/jpeg"}],"author":"bmarcet","twitter_card":"summary_large_image","twitter_misc":{"Escrit per":"bmarcet","Temps estimat de lectura":"3 minuts"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/","url":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/","name":"Espectrosc\u00f2pia Nir: T\u00e8cnica d'An\u00e0lisi - Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","isPartOf":{"@id":"https:\/\/convet.net\/#website"},"primaryImageOfPage":{"@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage"},"image":{"@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage"},"thumbnailUrl":"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg","datePublished":"2021-12-13T13:17:10+00:00","dateModified":"2022-03-18T09:57:22+00:00","author":{"@id":"https:\/\/convet.net\/#\/schema\/person\/2f16d127c56c3b26f6811abb236d8b29"},"breadcrumb":{"@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#breadcrumb"},"inLanguage":"ca","potentialAction":[{"@type":"ReadAction","target":["https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/"]}]},{"@type":"ImageObject","inLanguage":"ca","@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#primaryimage","url":"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg","contentUrl":"https:\/\/convet.net\/wp-content\/uploads\/2021\/12\/foss_nirs_ds2500_1.jpg","width":360,"height":356},{"@type":"BreadcrumbList","@id":"https:\/\/convet.net\/ca\/espectroscopia-nir-tecnica-danalisi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/convet.net\/ca\/"},{"@type":"ListItem","position":2,"name":"Espectrosc\u00f2pia Nir: T\u00e8cnica d’An\u00e0lisi"}]},{"@type":"WebSite","@id":"https:\/\/convet.net\/#website","url":"https:\/\/convet.net\/","name":"Convet | Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","description":"Laboratorio de An\u00e1lisis Alimentario y Veterinario Especializado","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/convet.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ca"},{"@type":"Person","@id":"https:\/\/convet.net\/#\/schema\/person\/2f16d127c56c3b26f6811abb236d8b29","name":"bmarcet","url":"https:\/\/convet.net\/ca\/author\/bmarcet\/"}]}},"_links":{"self":[{"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/posts\/3076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/comments?post=3076"}],"version-history":[{"count":0,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/posts\/3076\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/media\/2912"}],"wp:attachment":[{"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/media?parent=3076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/categories?post=3076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/convet.net\/ca\/wp-json\/wp\/v2\/tags?post=3076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}