{"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\/id\/applications\/determination-of-copper-in-graphite-powder-flame-atomic-absorption-spectrometry-2","title":{"rendered":"Penentuan Tembaga dalam Bubuk Grafit (Spektrometri Penyerapan Atom Api)"},"content":{"rendered":"

1. Gambaran Umum Metode<\/h2>\n
Setelah sampel dicerna dengan aqua regia, penentuan dilakukan menggunakan api udara-asetilena pada panjang gelombang instrumen 324,7 nm.<\/div>\n
\n

2. Instrumen dan Reagen<\/h2>\n

2.1 Instrumen dan Peralatan<\/h3>\n

2.1.1 Instrumen Pengujian<\/h4>\n
\n
\n\n\n\n\n\n\n\n
Serial No.<\/th>\nNama<\/th>\nKuantitas<\/th>\nPersyaratan Teknis<\/th>\nAksesoris<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nSpektrofotometer Penyerapan Atom Api<\/td>\n1 set<\/td>\n–<\/td>\nLampu Katoda Berberongga Tembaga<\/td>\n<\/tr>\n
2<\/td>\nGas asetilena<\/td>\n1 silinder<\/td>\nKemurnian \u2265 99,99%<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nKompresor Udara<\/td>\n1 set<\/td>\nTekanan pelepasan nominal: 0,3 MPa<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.1.2 Sampel Peralatan Praperawatan<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n
Serial No.<\/th>\nNama<\/th>\nKuantitas<\/th>\nPersyaratan Teknis<\/th>\nAksesoris<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nPlat Panas yang Dikontrol Suhu<\/td>\n1 set<\/td>\nSuhu nominal: Suhu kamar ~ 300 \u2103<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nKeseimbangan Elektronik<\/td>\n1 set<\/td>\nSensitivitas: 0,1 mg<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nSistem Air Ultramurni<\/td>\n1 set<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\nMikropipet<\/td>\n1 masing-masing<\/td>\nKisaran: 20 \u03bcL ~ 200 \u03bcL, 100 \u03bcL ~ 1000 \u03bcL<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\nKolos Volumetrik<\/td>\nBeberapa<\/td>\nVolume: 100 ml<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\nTabung Uji<\/td>\nBeberapa<\/td>\nVolume: 25 ml<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 Reagen<\/h3>\n

2.2.1 Reagen mentah<\/h4>\n
\n
\n\n\n\n\n\n\n
Serial No.<\/th>\nNama<\/th>\nPersyaratan Teknis<\/th>\nPerkataan<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nAsam Nitrat<\/td>\nKelas MOS<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nAsam hidroklorik<\/td>\nReagen yang dijamin (GR)<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 Reagen yang disiapkan<\/h4>\n
\n
\n\n\n\n\n\n
Serial No.<\/th>\nNama<\/th>\nMetode Persiapan<\/th>\nPerkataan<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nSolusi Asam Nitrat (1 99)<\/td>\nUkur 10 mL asam nitrat, perlahan-lahan tambahkan ke 990 mL air deionisasi, dan campur dengan baik.<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.3 Standar referensi<\/h3>\n

2.3.1 Solusi stok<\/h4>\n
\n
\n\n\n\n\n\n
Serial No.<\/th>\nTidak, tidak.<\/th>\nNama<\/th>\nPersyaratan Teknis<\/th>\nPerkataan<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nAngka 08615<\/td>\nSolusi Standar Elemen Tunggal Tembaga<\/td>\nKonsentrasi: 1000 \u03bcg \/ ml<\/td>\nInstitut Metrologi Nasional, Cina<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

3. Perhitungan Hasil<\/h2>\n
Kandungan tembaga dalam sampel dihitung menggunakan rumus berikut:<\/div>\n
\"\"<\/div>\n


<\/p>\n

Di mana:<\/div>\n
    \n
  • X<\/span>\u00a0= Kandungan tembaga dalam sampel, unit: miligram per kilogram (mg \/ kg);<\/li>\n
  • \u03c1 = Konsentrasi massa tembaga dalam larutan uji sampel, unit: mikrogram per mililiter (\u03bcg\/mL);<\/li>\n
  • \u03c10<\/span>= Konsentrasi massa tembaga dalam larutan kosong, unit: mikrogram per mililiter (\u03bcg \/ mL);<\/li>\n
  • F<\/span>\u00a0= Faktor pengenceran larutan sampel yang dicerna;<\/li>\n
  • dalam<\/span>\u00a0= Total volume larutan sampel yang dicerna, unit: mililiter (mL);<\/li>\n
  • M<\/span>\u00a0= Massa sampel, unit: gram (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\/id\/wp-json\/wp\/v2\/posts\/3902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/comments?post=3902"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/posts\/3902\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/media?parent=3902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/categories?post=3902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/id\/wp-json\/wp\/v2\/tags?post=3902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}