{"id":97932,"date":"2025-12-27T22:32:55","date_gmt":"2025-12-27T21:32:55","guid":{"rendered":"https:\/\/new.researchpeptides-europe.com\/?page_id=97932"},"modified":"2025-12-27T22:32:55","modified_gmt":"2025-12-27T21:32:55","slug":"certificate-of-analysis","status":"publish","type":"page","link":"https:\/\/tst.kathama.com\/el\/info\/certificate-of-analysis\/","title":{"rendered":"\u03a0\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03b9\u03ba\u03cc \u0391\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"97932\" class=\"elementor elementor-97932\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1866c9 e-flex e-con-boxed e-con e-parent\" data-id=\"a1866c9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39b4608 elementor-widget elementor-widget-heading\" data-id=\"39b4608\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u03a0\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03b9\u03ba\u03cc \u0391\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ae383b5 e-flex e-con-boxed e-con e-parent\" data-id=\"ae383b5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ac4945 elementor-widget elementor-widget-html\" data-id=\"9ac4945\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- COA Overview (Elementor HTML widget) -->\r\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\r\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:wght@400;500;600;700&display=swap\" rel=\"stylesheet\">\r\n\r\n<style>\r\n  .rpe-coa {\r\n    font-family: \"DM Sans\", system-ui, -apple-system, \"Segoe UI\", Roboto, Arial, \"Helvetica Neue\";\r\n    color: #0b0b0b;\r\n    background: #fff;\r\n    padding: 20px;\r\n    border-radius: 10px;\r\n    box-sizing: border-box;\r\n    max-width: 100%;\r\n    line-height: 1.55;\r\n    font-size: 15px;\r\n  }\r\n\r\n  .rpe-coa .header { display:flex; gap:12px; align-items:center; margin-bottom:12px; }\r\n  .rpe-coa .brand { width:48px; height:48px; border-radius:8px; overflow:hidden; display:inline-flex; align-items:center; justify-content:center; background:linear-gradient(180deg,#158f85,#0f6b60); }\r\n  .rpe-coa .brand img{ width:100%; height:auto; display:block; }\r\n  .rpe-coa h1 { margin:0; font-size:18px; font-weight:700; color:#000; }\r\n  .rpe-coa p.lead { margin:6px 0 14px; color:#586069; font-size:14px; }\r\n\r\n  \/* Headings per request *\/\r\n  .rpe-coa h2 { font-size:18px; color:#000; font-weight:600; margin:14px 0 8px; }\r\n  .rpe-coa h3 { font-size:16px; color:#158f85; margin:8px 0; }\r\n\r\n  .rpe-coa p { margin:0 0 12px 0; }\r\n  .rpe-coa ul { margin:0 0 12px 20px; }\r\n  .rpe-coa li { margin:6px 0; }\r\n\r\n  .rpe-coa .callout { border-left:4px solid #158f85; padding:10px 12px; background:rgba(21,143,133,0.04); color:#586069; border-radius:6px; margin:12px 0; font-size:14px; }\r\n\r\n  .rpe-coa .cta {\r\n    display:inline-block;\r\n    margin-top:12px;\r\n    background:linear-gradient(180deg,#158f85,#0f6b60);\r\n    color:#fff;\r\n    text-decoration:none;\r\n    padding:10px 14px;\r\n    border-radius:8px;\r\n    font-weight:600;\r\n  }\r\n  .rpe-coa .cta:focus { outline:3px solid rgba(21,143,133,0.12); outline-offset:3px; }\r\n\r\n  \/* hide brand on small screens *\/\r\n  @media (max-width:720px){ .rpe-coa .brand { display:none; } }\r\n<\/style>\r\n\r\n<article class=\"rpe-coa\" aria-labelledby=\"coa-title\">\r\n  <header class=\"header\">\r\n    <div class=\"brand\" aria-hidden=\"true\">\r\n      <img decoding=\"async\" src=\"https:\/\/tst.kathama.com\/wp-content\/uploads\/2025\/12\/logodk2.png\" alt=\"\u039b\u03bf\u03b3\u03cc\u03c4\u03c5\u03c0\u03bf \u03b5\u03c4\u03b1\u03b9\u03c1\u03b5\u03af\u03b1\u03c2\">\r\n    <\/div>\r\n    <div>\r\n      <h1 id=\"coa-title\">Certificates of Analysis (COAs)<\/h1>\r\n      <p class=\"lead\">Every batch we supply is supported by an independent COA. Reports are issued by accredited third-party labs and document the tests performed on the batch prior to release.<\/p>\r\n    <\/div>\r\n  <\/header>\r\n\r\n  <section aria-labelledby=\"coa-intro\">\r\n    <h2 id=\"coa-intro\">Overview<\/h2>\r\n    <p>Each Certificate of Analysis confirms that a representative sample from the batch was tested using fit-for-purpose, industry-standard analytical methods. Results relate only to the specific batch tested and the corresponding current batch stock.<\/p>\r\n  <\/section>\r\n\r\n  <section aria-labelledby=\"coa-include\">\r\n    <h2 id=\"coa-include\">What our COAs include<\/h2>\r\n    <ul>\r\n      <li><strong>Peptide identity confirmation<\/strong> \u2014 spectrometric and spectral methods (LC-MS, FTIR) versus reference standards.<\/li>\r\n      <li><strong>Purity &amp; impurity profiling<\/strong> \u2014 HPLC chromatographic separation to quantify purity and related impurities.<\/li>\r\n      <li><strong>Content \/ assay verification<\/strong> \u2014 confirmation of labelled peptide content within specified tolerances.<\/li>\r\n      <li><strong>Bioburden testing<\/strong> \u2014 USP &lt;61&gt; microbial screening.<\/li>\r\n      <li><strong>Bacterial endotoxin<\/strong> \u2014 USP &lt;85&gt; (chromogenic) assay.<\/li>\r\n      <li><strong>Elemental impurities<\/strong> \u2014 heavy-metal panel (arsenic, cadmium, lead, mercury, nickel, cobalt, vanadium) reported against detection limits where applicable.<\/li>\r\n    <\/ul>\r\n  <\/section>\r\n\r\n  <section aria-labelledby=\"coa-why\">\r\n    <h2 id=\"coa-why\">Why we use these methods<\/h2>\r\n    <p>Chromatographic and spectrometric techniques are widely recognised, reproducible, and efficient for routine batch quality control of research peptides. Our testing strategy focuses on validated methods that provide reliable identity, impurity, and purity data suitable for routine batch release.<\/p>\r\n    <p class=\"callout\"><strong>\u03a3\u03b7\u03bc\u03b5\u03af\u03c9\u03bc\u03b1:<\/strong> Advanced reference techniques are used where required for method development or standardisation, but are not mandatory for routine release once validated methods are in place.<\/p>\r\n  <\/section>\r\n\r\n  <section aria-labelledby=\"coa-transparency\">\r\n    <h2 id=\"coa-transparency\">Transparency &amp; traceability<\/h2>\r\n    <ul>\r\n      <li>Each batch is assigned a unique lot number.<\/li>\r\n      <li>COAs include laboratory reference details and test dates.<\/li>\r\n      <li>Results relate solely to the batch tested and current stock from that batch.<\/li>\r\n      <li>COAs are published on our website for independent review.<\/li>\r\n    <\/ul>\r\n  <\/section>\r\n\r\n  <section aria-labelledby=\"coa-intended\">\r\n    <h2 id=\"coa-intended\">Intended use<\/h2>\r\n    <p>Research Peptides Europe supplies traceable, analytically verified materials intended exclusively for laboratory and scientific use.<\/p>\r\n\r\n    <a class=\"cta\" href=\"\/el\/pep\/test-results\/\" title=\"Open COA Library\">View COA Library<\/a>\r\n  <\/section>\r\n<\/article>\r\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Certificate of Analysis Certificates of Analysis (COAs) Every batch we supply is supported by an independent COA. Reports are issued by accredited third-party labs and document the tests performed on the batch prior to release. Overview Each Certificate of Analysis confirms that a representative sample from the batch was tested using fit-for-purpose, industry-standard analytical methods.&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":5691,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-97932","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/pages\/97932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/comments?post=97932"}],"version-history":[{"count":0,"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/pages\/97932\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/pages\/5691"}],"wp:attachment":[{"href":"https:\/\/tst.kathama.com\/el\/wp-json\/wp\/v2\/media?parent=97932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}