M\u1eabu \u0111\u01b0\u1ee3c ph\u00e2n h\u1ee7y b\u1eb1ng dung d\u1ecbch axit clohidric, hydro peroxit v\u00e0 axit nitric. Trong m\u00f4i tr\u01b0\u1eddng axit clohidric lo\u00e3ng, \u0111\u1ed9 h\u1ea5p th\u1ee5 c\u1ee7a s\u1eaft \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng ng\u1ecdn l\u1eeda kh\u00f4ng kh\u00ed-axetylen \u1edf b\u01b0\u1edbc s\u00f3ng 248,3 nm b\u1eb1ng m\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed.<\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng s\u1eaft trong h\u1ee3p kim k\u1ebdm.<\/p>\n
Ti\u00eau chu\u1ea9n GB\/T 12689.5\u20112004 Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch h\u00f3a h\u1ecdc k\u1ebdm v\u00e0 h\u1ee3p kim k\u1ebdm \u2014 X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng s\u1eaft \u2014 \u200b\u200bPh\u01b0\u01a1ng ph\u00e1p \u0111o quang ph\u1ed5 axit sulfosalicylic v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda. Ph\u01b0\u01a1ng ph\u00e1p 2: Quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda<\/strong><\/p>\n 1 Method Overview The sample is digested with hydrochloric acid, hydrogen peroxide and nitric acid solution. In dilute hydrochloric acid medium, the absorbance of iron is measured by air\u2011acetylene flame at the wavelength of 248.3\u202fnm using an atomic absorption spectrometer. 2 Scope of Application This method is applicable for the determination of iron in zinc […]<\/p>\n","protected":false},"author":2,"featured_media":4864,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,36],"tags":[],"class_list":["post-5278","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-petrochemical-and-chemical","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/comments?post=5278"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5278\/revisions"}],"predecessor-version":[{"id":5279,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5278\/revisions\/5279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/4864"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=5278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=5278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=5278"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}4. D\u1ee5ng c\u1ee5 v\u00e0 h\u00f3a ch\u1ea5t<\/h2>\n
4.1 Thi\u1ebft b\u1ecb v\u00e0 d\u1ee5ng c\u1ee5<\/h3>\n
4.1.1 D\u1ee5ng c\u1ee5 th\u1eed nghi\u1ec7m<\/h4>\n
\n\n
\n \nKh\u00f4ng.<\/th>\n T\u00ean<\/th>\n S\u1ed1 l\u01b0\u1ee3ng<\/th>\n Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\n Ph\u1ee5 ki\u1ec7n<\/th>\n<\/tr>\n<\/thead>\n \n 1<\/td>\n Nh\u00e3n quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda<\/td>\n 1 b\u1ed9<\/td>\n \u2014<\/td>\n \u0110\u00e8n cat\u1ed1t r\u1ed7ng b\u1eb1ng s\u1eaft<\/td>\n<\/tr>\n \n 2<\/td>\n M\u00e1y n\u00e9n kh\u00ed<\/td>\n 1 b\u1ed9<\/td>\n \u00c1p su\u1ea5t x\u1ea3 \u0111\u1ecbnh m\u1ee9c: 0,3 MPa<\/td>\n \u2014<\/td>\n<\/tr>\n \n 3<\/td>\n Acetylen<\/td>\n 1 xi lanh<\/td>\n \u0110\u1ed9 tinh khi\u1ebft \u226599,99%<\/td>\n \u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"