{'fraction_non_alphanumeric': 0.04081632653061224, 'fraction_numerical': 0.03139717425431711, 'mean_word_length': 4.962616822429907, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Determination of vanadium in workplace air by DCP emission spectrometry.

This paper provides a method for directly determining vanadium in workplace air by direct current plasma atomic emission spectrometry (DCP-AES). Wavelength selection, instrument operating parameters, and sample preparation methods were studied. It was found that the most suitable wavelength for the analytical line is 437.924 nm (DL 0.006 mg/L) but also the line 309.311 nm (DL 0.003 mg/L) can be used. The results obtained by DCP-AES were compared with those obtained by both flame (FAAS) and electrothermal atomization (ETA-AAS) atomic absorption spectrometry.