Two Test Methods for Determining the Relative Background Emission from a Hollow Cathode Lamp

1992 ◽  
Vol 46 (9) ◽  
pp. 1400-1404 ◽  
Author(s):  
Paddy Fleming
Keyword(s):  
Atomic Absorption ◽  
Hollow Cathode ◽  
Atomic Absorption Spectrophotometry ◽  
Test Methods ◽  
Hollow Cathode Lamp ◽  
Absorption Spectrophotometry ◽  
Background Emission

This paper describes two test methods, based respectively on direct transmittance spectrometry and transmittance ratio spectrometry, to determine the relative background emission from the hollow cathode lamps used in atomic absorption spectrophotometry.

scholarly journals Analisis Logam Kromium (Cr) Pada Sediaan Perona Pipi (Blush On) Secara Spektrofotometri Serapan Atom

2019 ◽  
Vol 5 (3) ◽  
pp. 185
Author(s):  
Regina Andayani ◽  
Siti Yulia Rahma ◽  
Martinus Martinus
Keyword(s):  
Heavy Metal ◽  
Nitric Acid ◽  
Atomic Absorption ◽  
Hollow Cathode ◽  
Atomic Absorption Spectrophotometry ◽  
Atomic Absorption Spectrophotometer ◽  
Sample Solution ◽  
Hollow Cathode Lamp ◽  
Absorption Spectrophotometry

ABSTRAKKromium merupakan logam berat yang dilarang penggunaannya dalam sediaan kosmetik. Efek logam kromium apabila terpapar pada kulit dapat menyebabkan dermatitis, oedema dan borok yang dapat meluas pada kulit. Analisis logam kromium (Cr) pada sediaan perona pipi (Blush On) secara Spektrofotometri Serapan Atom telah dilakukan. Masing-masing sampel didestruksi terlebih dahulu dengan cara destruksi kering, kemudian sampel dilarutkan dengan asam nitrat 6 N, larutan sampel diukur serapannya dengan alat Spektrofotometer Serapan Atom menggunakan lampu katoda berongga kromium pada panjang gelombang 357,9 nm. Hasil dari penelitian ini adalah sampel merek IZ, VV, KS, MC terdeteksi mengandung logam kromium dengan kadar berturut-turut adalah 10,05 ± 0,05 µg/g; 6,74 ± 0,02 µg/g; 28,95 ± 0,19 µg/g; 13,52 ± 0,63 µg/g. Data menunjukan bahwa adanya kromium pada semua sampel.Kata kunci: logam; kromium; perona pipi; spektrofotometri serapan atom ABSTRACTChromium is a heavy metal which is prohibited from using it in cosmetic preparations. Effects of chromium metal, when exposed to the skin, can cause dermatitis, oedema and ulcers that can extend to the skin. Analysis of chromium (Cr) metal in blush preparations by Atomic Absorption Spectrophotometry was carried out. Each sample was first destructed by dry destruction, then the sample was dissolved with 6 N nitric acid, the absorption of the sample solution was measured by an atomic absorption spectrophotometer using a chromium hollow cathode lamp at a wavelength of 357.9 nm. The results showed that all samples under the IZ, VV, KS and MC brands were detected containing chromium metal with levels of 10.05 ± 0.05 μg/g respectively; 6.74 ± 0.02 µg/g; 28.95 ± 0.19 µg/g; 13.52 ± 0.63 µg/g. Data shows that the presence of chromium in all samples.Keywords: metal; chromium; blush; atomic absorption spectrophotometry. 

Isotopic Analysis of Lithium by Atomic Absorption Spectrophotometry

1971 ◽  
Vol 25 (3) ◽  
pp. 328-330 ◽  
Author(s):  
J. A. Wheat
Keyword(s):  
Isotopic Composition ◽  
Atomic Absorption ◽  
Hollow Cathode ◽  
Isotopic Analysis ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Method ◽  
Atomic Absorption Method ◽  
Absorption Spectrophotometry ◽  
The Absolute ◽  
Flame Atomizer

An atomic absorption method was developed to determine the isotopic composition of lithium. The method utilizes neon-filled 6Li and 7Li hollow cathode emission lamps and a flame atomizer. The absolute precision of the method is ±0.5 at.% 6Li.

Analysis of Lead Heavy Metal (Pb) Contamination on Matte Lipstick Preparations for Sale in Banda Aceh City Aceh Market

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Permissible Limit ◽  
The Sun ◽  
Absorption Spectrophotometry ◽  
Pb Contamination ◽  
Body Organ ◽  
Banda Aceh

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.

PENURUNAN KONSENTRASI LOGAM Pb2+ DAN Cd2+ PADA LIMBAH CAIR INDUSTRI SASIRANGAN DENGAN METODE FITOREMEDIASI

2015 ◽  
Vol 1 (1) ◽  
pp. 41
Author(s):  
Bella Santa Rossi ◽  
Paryanti Paryanti ◽  
Yuli Ristianingsih ◽  
Abubakar Tuhuloula
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry

Pewarnaan pada proses produksi kain sasirangan menghasilkan limbah yang mengandung logam berat, diantaranya adalah timbal (Pb2+) dan kadmium (Cd2+). Penelitian ini bertujuan untuk mengetahui pengaruh proses fitoremediasi terhadap konsentrasi logam Pb2+ dan Cd2+ dari limbah cair industri sasirangan di Kalimantan Selatan, serta mengetahui pertambahan berat basah eceng gondok. Eceng gondok yang sudah dibersihkan dan diaklimatisasi ditanam dalam reaktor berisi larutan limbah dengan konsentrasi 3% (v/v); 9% (v/v); dan 15% (v/v). Sampel diambil setiap 2 hari sekali sebanyak 100 ml dan dianalisis menggunakan AAS (Atomic Absorption Spectrophotometry). Hasil penelitian ini menunjukkan bahwa konsentrasi logam Pb2+ dan Cd2+ dalam limbah setelah proses fitoremediasi terjadi penurunan. Kadar Pb2+ pada konsentrasi 3% (v/v) semula 0,197 ppm menjadi 0,062 ppm, pada konsentrasi 9% (v/v) semula 0,200 ppm menjadi 0,077 ppm dan untuk 15% (v/v) adalah 0,225 ppm menjadi 0,093 ppm. Sedangkan untuk Cd2+ konsentrasi 3% (v/v) semula 0,110 ppm menjadi 0,059 ppm, konsentrasi 9% (v/v) adalah 0,127 ppm menjadi 0,045 ppm dan untuk konsentrasi 15% (v/v) semula 0,144 ppm menjadi 0,047 ppm.

Determination of Minor Nutrients in Fertilizers by Atomic Absorption Spectrophotometry: Second Collaborative Study

1965 ◽  
Vol 48 (6) ◽  
pp. 1100-1103
Author(s):  
C H Mcbride
Keyword(s):  
Atomic Absorption ◽  
Collaborative Study ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Method ◽  
Atomic Absorption Method ◽  
Absorption Spectrophotometry ◽  
Minor Nutrients

Abstract The atomic absorption method studied last year was re-examined and extended to include calcium and sodium. The procedures were submitted to 16 collaborators for determination of Ca, Cu, Fe, Mg, Mn, Na, and Zn. Results for Ca and Na were discouraging; further study is recommended.

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