TY - RPRT TI - Zeeman effect electrothermal atomic absorption spectrophotometry with matrix modification for the determination of arsenic in urine. AU - D G Edgar AU - K R Lum PY - 1983 DO - 10.1080/03067318308078363 UR - https://pubmed.ncbi.nlm.nih.gov/6679539/ ID - 6679539 ER -