1994
DOI: 10.1016/0003-2670(94)00327-0
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An improved method for decontaminating polar snow or ice cores for heavy metal analysis

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Cited by 130 publications
(86 citation statements)
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“…It was likely that significant contamination was present in the outside of the samples obtained as cores. Each core section was therefore decontaminated by chiselling successive veneers of snow or ice in progression from the outside to the center of the core using an ultraclean procedure which has been described elsewhere (23). It allowed for obtaining the uncontaminated cylindrical central part of each section.…”
Section: Methodsmentioning
confidence: 99%
“…It was likely that significant contamination was present in the outside of the samples obtained as cores. Each core section was therefore decontaminated by chiselling successive veneers of snow or ice in progression from the outside to the center of the core using an ultraclean procedure which has been described elsewhere (23). It allowed for obtaining the uncontaminated cylindrical central part of each section.…”
Section: Methodsmentioning
confidence: 99%
“…Four successive veneer layers were chiseled from the outside to the inside using ultraclean procedures described elsewhere [Candelone et al, 1994]. Each of the thirtyfour inner parts so obtained were cut into three -• 20 cm long parts, except for four very long sections which were divided into five parts.…”
Section: Laboratory Analysismentioning
confidence: 99%
“…La princ ipale caractéristique de ce protoco le de prélèvement « propre » est d'être vêtu de vêtements non émissifs de poussières, de porter des gants en polyéthylène non contaminant pour les échantillons, et d'uti liser du matérie l en polyéthy lène ayant fai t l'objet au préalable d'un nettoyage poussé dans les salles blanches du LGGE [6]. La procédure de prélè-vem ent se doit d'être su ivie avec précautio n, afin d'éviter au possible tout problème de contamination des échantillons.…”
Section: Mise Au Point Du Protocole De Prélèvement Des éChantillon S unclassified
“…Le pré lèvemen t se fait avec des tubes en polyéthylène nettoyés selon une procédure propre déve-loppée au laboratoire (bains success ifs acidifiés et chauffés , et rinçages à l'eau ultrapure) [6]. Le prélè-vement s'effect ue en enfonçant verticalement le tube dans la neige jusqu'à la plaque de repérage.…”
Section: Mise Au Point Du Protocole De Prélèvement Des éChantillon S unclassified
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