{'fraction_non_alphanumeric': 0.02544378698224852, 'fraction_numerical': 0.017159763313609466, 'mean_word_length': 4.99645390070922, '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}}
The Analytical Diagnosis of Solvent Abuse

In the past few years, solvent abuse among young teenagers appears to have reached epidemic proportions. The side-effects are such that children frequently come under medical supervision, generally in the receiving unit of a hospital. There, the clinician is faced with a problem of diagnosis. Unless there are obvious signs of solvent abuse, in particular evidence of the solvent on the breath or on the clothes, the clinician is in a dilemma with respect to attributing a cause to possible hallucinations, euphoria, coma, ataxia, convulsions, behavioural disturbances and diplopia (Allister et al., 1981; King et al., 1981). An analytical aid to diagnosis is, at first sight, complex since there are over 50 commonly abused solvents of widely different properties cited in the literature. The initial investigation used capillary column gas chromatography both alone and coupled to a mass spectrometer. This proved to be unnecessary as the study revealed that the solvent mixtures abused and encountered today are not complex and that the analysis can be performed rapidly using packed column gas chromatography (Lush et al., 1980). Over a 3-year period from 1977 to 1980, blood samples were received front police stations, hospitals and from post mortems. In the first 10 months of the current year, a total of 50 samples were received from hospitals in Scotland, the north east and the midlands of England. In addition; specimens from 11 deaths relating to solvents were investigated. All specimens were analysed by gas liquid chromatography for the presence of solvents. Where available, clinical data was correlated with solvent levels meas-