{"id":3902,"date":"2025-09-04T11:03:47","date_gmt":"2025-09-04T03:03:47","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3902"},"modified":"2025-09-04T11:03:47","modified_gmt":"2025-09-04T03:03:47","slug":"determination-of-copper-in-graphite-powder-flame-atomic-absorption-spectrometry-2","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/de\/applications\/determination-of-copper-in-graphite-powder-flame-atomic-absorption-spectrometry-2","title":{"rendered":"Bestimmung von Kupfer in Graphitpulver (Flammenatomatorenabsorptionsspektrometrie)"},"content":{"rendered":"

1. Methodenblick<\/h2>\n
Nach dem Verdauen der Probe mit Aqua Regia wird die Bestimmung mit einer Luft-Acetylenflamme bei einer Instrumentwellenl\u00e4nge von 324,7 nm durchgef\u00fchrt.<\/div>\n
\n

2. Instrumente und Reagentien<\/h2>\n

2.1 Instrumente und Ausr\u00fcstung<\/h3>\n

2.1.1 Pr\u00fcfinstrumente<\/h4>\n
\n
\n\n\n\n\n\n\n\n
Seriennummer.<\/th>\nName<\/th>\nMenge<\/th>\nTechnische Anforderungen<\/th>\nZubeh\u00f6r<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nFlammenabsorptionsspektrophotometer<\/td>\n1 Satz<\/td>\n–<\/td>\nKupfer Hohlkathodenlampe<\/td>\n<\/tr>\n
2<\/td>\nAcetylengas<\/td>\n1 Zylinder<\/td>\nReinheit \u2265 99,99%<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nLuftkompressor<\/td>\n1 Satz<\/td>\nNennleistungsdruck: 0,3 MPa<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.1.2 Probenvorbehandlungsausr\u00fcstung<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n
Seriennummer.<\/th>\nName<\/th>\nMenge<\/th>\nTechnische Anforderungen<\/th>\nZubeh\u00f6r<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nTemperaturgesteuerte Hei\u00dfplatte<\/td>\n1 Satz<\/td>\nNenntemperatur: Raumtemperatur ~ 300 \u2103<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nElektronische Balance<\/td>\n1 Satz<\/td>\nEmpfindlichkeit: 0,1 mg<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nUltrareines Wassersystem<\/td>\n1 Satz<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\nMikropipette<\/td>\n1 jedes<\/td>\nBereiche: 20 \u03bcL ~ 200 \u03bcL, 100 \u03bcL ~ 1000 \u03bcL<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\nVolumetrische Flasche<\/td>\nMehrere<\/td>\nVolumen: 100 ml<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\nTestrohr<\/td>\nMehrere<\/td>\nVolumen: 25 ml<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 Reagenzien<\/h3>\n

2.2.1 Rohreagenzien<\/h4>\n
\n
\n\n\n\n\n\n\n
Seriennummer.<\/th>\nName<\/th>\nTechnische Anforderungen<\/th>\nAnmerkungen<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nStickstoffs\u00e4ure<\/td>\nMOS-Klasse<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nSalzs\u00e4ure<\/td>\nGarantiertes Reagenz (GR)<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2.2 Vorbereitete Reagenzien<\/h4>\n
\n
\n\n\n\n\n\n
Seriennummer.<\/th>\nName<\/th>\nHerstellungsmethode<\/th>\nAnmerkungen<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nStickstoffs\u00e4urel\u00f6sung (1 99)<\/td>\n10 ml Salpeters\u00e4ure messen, langsam zu 990 ml deionisiertes Wasser hinzuf\u00fcgen und gut mischen.<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.3 Referenzstandards<\/h3>\n

2.3.1 Lagerl\u00f6sung<\/h4>\n
\n
\n\n\n\n\n\n
Seriennummer.<\/th>\n- Nein. - Nein.<\/th>\nName<\/th>\nTechnische Anforderungen<\/th>\nAnmerkungen<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nGBW 08615<\/td>\nKupfer-Einelement-Standardl\u00f6sung<\/td>\nKonzentration: 1000 \u03bcg\/ml<\/td>\nNationales Institut f\u00fcr Metrologie, China<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

3. Ergebnisberechnung<\/h2>\n
Der Kupfergehalt in der Probe wird anhand der folgenden Formel berechnet:<\/div>\n
\"\"<\/div>\n


<\/p>\n

Wo:<\/div>\n
    \n
  • X<\/span>\u00a0= Kupfergehalt in der Probe, Einheit: Milligramm pro Kilogramm (mg\/kg);<\/li>\n
  • \u03c1 = Massenkonzentration von Kupfer in der Probentestl\u00f6sung, Einheit: Mikrogramm pro Milliliter (\u03bcg\/ml);<\/li>\n
  • \u03c10<\/span>= Massenkonzentration von Kupfer in der Rohl\u00f6sung, Einheit: Mikrogramm pro Milliliter (\u03bcg\/ml);<\/li>\n
  • F<\/span>\u00a0= Verd\u00fcnnungsfaktor der verdauten Probenl\u00f6sung;<\/li>\n
  • V<\/span>\u00a0= Gesamtvolumen der verdauten Probenl\u00f6sung, Einheit: Milliliter (mL);<\/li>\n
  • M<\/span>\u00a0= Masse der Probe, Einheit: Gramm (g).<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"

    1. Method Overview After the sample is digested with aqua regia, the determination is carried out using an air-acetylene flame at an instrument wavelength of 324.7 nm. 2. Instruments and Reagents 2.1 Instruments and Equipment 2.1.1 Testing Instruments Serial No. Name Quantity Technical Requirements Accessories 1 Flame Atomic Absorption Spectrophotometer 1 set – Copper Hollow […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,36],"tags":[],"class_list":["post-3902","post","type-post","status-publish","format-standard","hentry","category-petrochemical-and-chemical","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/posts\/3902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/comments?post=3902"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/posts\/3902\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/media?parent=3902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/categories?post=3902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/de\/wp-json\/wp\/v2\/tags?post=3902"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}