Kirsi Halme

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A quantitative liquid chromatography-tandem mass spectrometric (LC-MS/MS) method has been developed for the determination of malachite green (MG) and its metabolite leucomalachite green (LMG) in fish. Residues were extracted with an acetonitrile-acetate buffer and purified using the automated solid-phase extraction (ASPEC). Residues were analyzed with a(More)
Traditional ecological knowledge (TEK) is a potential source of ecological information. Typically TEK has been documented at the species level, but habitat data would be equally valuable for conservation applications. We compared the TEK forest type classification of ribereños, the non-indigenous rural peasantry of Peruvian Amazonia, to a floristic(More)
A total of 1047 psoriatic patients treated with PUVA were examined for lentiginosis, actinic keratosis and skin cancer. 128 patients had earlier been treated with arsenic, 4 with ionizing radiation and 6 with methotrexate. Lentiginosis was found in 6.2% and actinic keratosis in 1.8% of the patients. 2 patients had histologically verified basal cell(More)
139 patients with vitiligo of long duration were treated with oral 8-MOP and UVA. 22 patients had focal and 117 generalized vitiligo. 27 had vitiligo on the skin of their face and/or neck and 58 on their hands and/or feet. Vitiligo of the face and/or neck responded very well to the treatment, 14 of 27 (52%) repigmenting completely, while the treatment(More)
A method for the determination of malachite green and its major metabolite leucomalachite green in rainbow trout muscle is reported with limits of detection of 0.8 and 0.6 microg kg(-1), respectively. Residues were extracted with an acetonitrile-acetate buffer mixture and partitioned into methylene chloride. Clean-up of the extracts was performed on alumina(More)
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