{"id":120658,"date":"2024-07-01T16:29:22","date_gmt":"2024-07-01T16:29:22","guid":{"rendered":"https:\/\/phoeniximpact.ca\/2024\/07\/01\/precision-du-volume-des-pointes-de-pipette\/"},"modified":"2026-06-29T18:18:31","modified_gmt":"2026-06-29T18:18:31","slug":"precision-du-volume-des-pointes-de-pipette","status":"publish","type":"post","link":"https:\/\/phoeniximpact.ca\/fr\/2024\/07\/01\/precision-du-volume-des-pointes-de-pipette\/","title":{"rendered":"Pr\u00e9cision du volume des embouts de pipette"},"content":{"rendered":"

[vc_row row_height_percent=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb2″ top_padding=\u00a0\u00bb2″ bottom_padding=\u00a0\u00bb2″ back_color=\u00a0\u00bbcolor-366045″ overlay_alpha=\u00a0\u00bb50″ equal_height=\u00a0\u00bbyes\u00a0\u00bb gutter_size=\u00a0\u00bb3″ column_width_percent=\u00a0\u00bb100″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ uncode_shortcode_id=\u00a0\u00bb224020″ back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_column column_width_percent=\u00a0\u00bb100″ position_vertical=\u00a0\u00bbmiddle\u00a0\u00bb align_horizontal=\u00a0\u00bbalign_center\u00a0\u00bb gutter_size=\u00a0\u00bb2″ overlay_alpha=\u00a0\u00bb50″ shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb4″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb2\/3″ uncode_shortcode_id=\u00a0\u00bb122956″][vc_custom_heading text_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb heading_semantic=\u00a0\u00bbh1″ text_size=\u00a0\u00bbh4″ text_transform=\u00a0\u00bbuppercase\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb989194″ text_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb]Validation<\/span>[\/vc_custom_heading][vc_custom_heading text_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb heading_semantic=\u00a0\u00bbh1″ text_size=\u00a0\u00bbfontsize-155944″ text_weight=\u00a0\u00bb600″ text_space=\u00a0\u00bbfontspace-781688″ uncode_shortcode_id=\u00a0\u00bb447629″ text_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb]Pr\u00e9cision du volume des embouts de pipette<\/span>[\/vc_custom_heading][vc_empty_space empty_h=\u00a0\u00bb1″][vc_button button_color=\u00a0\u00bbcolor-118531″ radius=\u00a0\u00bbbtn-round\u00a0\u00bb outline=\u00a0\u00bbyes\u00a0\u00bb border_width=\u00a0\u00bb0″ link=\u00a0\u00bburl:https%3A%2F%2Fphoeniximpact.ca%2Ffr%2Fvalidation%2F%23contact|title:Contact|\u00a0\u00bb button_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb988730″]Sugg\u00e9rer des tests suppl\u00e9mentaires[\/vc_button][\/vc_column][vc_column column_width_percent=\u00a0\u00bb100″ gutter_size=\u00a0\u00bb3″ override_padding=\u00a0\u00bbyes\u00a0\u00bb column_padding=\u00a0\u00bb0″ back_image=\u00a0\u00bb120646″ parallax=\u00a0\u00bbyes\u00a0\u00bb overlay_alpha=\u00a0\u00bb50″ shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb4″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/3″ uncode_shortcode_id=\u00a0\u00bb781577″][vc_single_image media=\u00a0\u00bb119635″ media_width_percent=\u00a0\u00bb100″ alignment=\u00a0\u00bbright\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb173810″][\/vc_column][\/vc_row][vc_row row_height_percent=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb2″ top_padding=\u00a0\u00bb3″ bottom_padding=\u00a0\u00bb0″ overlay_alpha=\u00a0\u00bb50″ gutter_size=\u00a0\u00bb3″ column_width_percent=\u00a0\u00bb100″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ uncode_shortcode_id=\u00a0\u00bb146190″][vc_column column_width_percent=\u00a0\u00bb100″ align_horizontal=\u00a0\u00bbalign_center\u00a0\u00bb gutter_size=\u00a0\u00bb3″ overlay_alpha=\u00a0\u00bb50″ shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb0″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/1″ uncode_shortcode_id=\u00a0\u00bb926637″][vc_custom_heading text_color=\u00a0\u00bbcolor-118531″ heading_semantic=\u00a0\u00bbh3″ text_size=\u00a0\u00bbh3″ text_weight=\u00a0\u00bb700″ text_transform=\u00a0\u00bbuppercase\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb153106″ text_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb]Pr\u00e9cision de distribution des embouts[\/vc_custom_heading][\/vc_column][\/vc_row][vc_row row_height_percent=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb0″ top_padding=\u00a0\u00bb2″ bottom_padding=\u00a0\u00bb4″ overlay_alpha=\u00a0\u00bb50″ gutter_size=\u00a0\u00bb3″ column_width_percent=\u00a0\u00bb100″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ content_parallax=\u00a0\u00bb0″ uncode_shortcode_id=\u00a0\u00bb107081″][vc_column column_width_percent=\u00a0\u00bb100″ gutter_size=\u00a0\u00bb3″ style=\u00a0\u00bblight\u00a0\u00bb overlay_alpha=\u00a0\u00bb100″ shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb0″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/1″ uncode_shortcode_id=\u00a0\u00bb956241″][vc_column_text text_lead=\u00a0\u00bbyes\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb933959″]<\/p>\n

Afin d’\u00e9valuer la qualit\u00e9 des embouts de pipette reconditionn\u00e9s, nous avons men\u00e9 une \u00e9tude de pr\u00e9cision gravim\u00e9trique comparant 1 200 embouts neufs \u00e0 1 200 embouts reconditionn\u00e9s, pour trois volumes standard (10 \u03bcL, 200 \u03bcL et 1 000 \u03bcL), test\u00e9es sur quatre mod\u00e8les de pipetman Gilson (P10, P20, P200 et P1000), les embouts de 200 \u03bcL ayant \u00e9t\u00e9 \u00e9valu\u00e9s \u00e0 la fois sur le mod\u00e8le P20 et sur le mod\u00e8le P200.<\/p>\n

Chaque pipetman a \u00e9t\u00e9 utilis\u00e9 \u00e0 ses r\u00e9glages de volume minimal et maximal en pipettant de l’eau distill\u00e9e, et le poids distribu\u00e9 a \u00e9t\u00e9 mesur\u00e9 \u00e0 l’aide d’une balance analytique \u00e9talonn\u00e9e. \u00c0 partir de ces mesures, nous avons calcul\u00e9 la pr\u00e9cision et le coefficient de variation (CV) pour chaque groupe, puis nous les avons compar\u00e9s aux sp\u00e9cifications d’origine du fabricant. <\/p>\n

Nos embouts reconditionn\u00e9s r\u00e9pondaient aux m\u00eames normes de performance que les embouts neufs, toutes tailles et tous r\u00e9glages de volume confondus. Pour conna\u00eetre la m\u00e9thodologie compl\u00e8te, consultez notre \u00e9tude : Mansouri et al., 2026 \u2014 npj Materials Sustainability.<\/em><\/a> <\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row row_height_percent=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb0″ top_padding=\u00a0\u00bb0″ bottom_padding=\u00a0\u00bb0″ overlay_alpha=\u00a0\u00bb50″ equal_height=\u00a0\u00bbyes\u00a0\u00bb gutter_size=\u00a0\u00bb4″ column_width_percent=\u00a0\u00bb100″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ content_parallax=\u00a0\u00bb0″ uncode_shortcode_id=\u00a0\u00bb947473″][vc_column column_width_percent=\u00a0\u00bb100″ position_horizontal=\u00a0\u00bbleft\u00a0\u00bb gutter_size=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb column_padding=\u00a0\u00bb1″ back_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb overlay_alpha=\u00a0\u00bb50″ shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb-2″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb0″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/2″ uncode_shortcode_id=\u00a0\u00bb118964″ back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_row_inner row_inner_height_percent=\u00a0\u00bb100″ overlay_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb overlay_alpha=\u00a0\u00bb30″ equal_height=\u00a0\u00bbyes\u00a0\u00bb gutter_size=\u00a0\u00bb2″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ limit_content=\u00a0\u00bb\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb175135″ overlay_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_column_inner column_width_percent=\u00a0\u00bb100″ gutter_size=\u00a0\u00bb1″ override_padding=\u00a0\u00bbyes\u00a0\u00bb column_padding=\u00a0\u00bb0″ style=\u00a0\u00bblight\u00a0\u00bb back_color=\u00a0\u00bbcolor-xsdn\u00a0\u00bb overlay_alpha=\u00a0\u00bb50″ radius=\u00a0\u00bbxl\u00a0\u00bb shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb4″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/2″ mobile_height=\u00a0\u00bb300″ uncode_shortcode_id=\u00a0\u00bb181026″ back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_single_image media=\u00a0\u00bb121299″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb177563″][vc_column_text text_lead=\u00a0\u00bbsmall\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb204912″] Les crit\u00e8res d’acceptation du fabricant sont indiqu\u00e9s en vert clair. <\/span><\/span>Tous les points de donn\u00e9es sont repr\u00e9sent\u00e9s graphiquement. <\/span>L’analyse statistique a \u00e9t\u00e9 r\u00e9alis\u00e9e \u00e0 l’aide du test de Mann<\/span>\u2013<\/span>Whitney U (<\/span>n<\/span> = 30) associ\u00e9 \u00e0 une correction de Bonferroni-Holm.<\/span>Les ast\u00e9risques indiquent une diff\u00e9rence statistiquement significative <\/span>entre les embouts neufs <\/span>et d\u2019embouts reconditionn\u00e9s :<\/span> *<\/span>p<\/span> < 0,05,<\/span> **<\/span>p<\/span> < 0,01,<\/span> ***<\/span>p<\/span> < 0,001.<\/span>[\/vc_column_text][\/vc_column_inner][vc_column_inner column_width_percent=\u00a0\u00bb100″ gutter_size=\u00a0\u00bb2″ override_padding=\u00a0\u00bbyes\u00a0\u00bb column_padding=\u00a0\u00bb3″ style=\u00a0\u00bblight\u00a0\u00bb back_color=\u00a0\u00bbaccent\u00a0\u00bb overlay_alpha=\u00a0\u00bb50″ radius=\u00a0\u00bbxl\u00a0\u00bb shift_x=\u00a0\u00bb0″ shift_y=\u00a0\u00bb0″ shift_y_down=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ medium_width=\u00a0\u00bb4″ mobile_width=\u00a0\u00bb0″ width=\u00a0\u00bb1\/2″ uncode_shortcode_id=\u00a0\u00bb167182″ back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_icon position=\u00a0\u00bbleft\u00a0\u00bb icon_image=\u00a0\u00bb120655″ media_size=\u00a0\u00bb60″ text_size=\u00a0\u00bbh2″ align=\u00a0\u00bbleft\u00a0\u00bb title=\u00a0\u00bbR\u00e9sultats\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb104039″][\/vc_icon][vc_column_text uncode_shortcode_id=\u00a0\u00bb202424″]<\/p>\n

Les embouts de pipette reconditionn\u00e9s ont affich\u00e9 des performances comparables \u00e0 celles des embouts neufs, tant en termes de pr\u00e9cision que de coefficient de variation (CV), sur l\u2019ensemble des quatre mod\u00e8les et pour tous les r\u00e9glages de volume. Les deux groupes ont satisfait aux crit\u00e8res d\u2019acceptation du fabricant dans toutes les conditions test\u00e9es. Cela confirme que les embouts reconditionn\u00e9s permettent de transf\u00e9rer un volume pr\u00e9cis. <\/p>\n

Dans la grande majorit\u00e9 des cas, aucune diff\u00e9rence statistiquement significative n\u2019a \u00e9t\u00e9 observ\u00e9e entre les embouts neufs et les embouts reconditionn\u00e9s au cours des cinq cycles de reconditionnement. Une seule exception a \u00e9t\u00e9 d\u00e9tect\u00e9e lors du quatri\u00e8me cycle de reconditionnement du mod\u00e8le P200, \u00e0 son r\u00e9glage de d\u00e9bit le plus faible, o\u00f9 les embouts reconditionn\u00e9s ont pr\u00e9sent\u00e9 des valeurs de CV l\u00e9g\u00e8rement sup\u00e9rieures. Ce cas isol\u00e9 n\u2019a pu \u00eatre associ\u00e9 \u00e0 aucune \u00e9tape sp\u00e9cifique du processus de reconditionnement et, surtout, toutes les valeurs mesur\u00e9es sont rest\u00e9es conformes aux sp\u00e9cifications du fabricant, ce qui confirme que les performances n\u2019ont pas \u00e9t\u00e9 compromises de mani\u00e8re significative sur le plan op\u00e9rationnel. <\/p>\n

[\/vc_column_text][vc_icon position=\u00a0\u00bbleft\u00a0\u00bb icon_image=\u00a0\u00bb120653″ media_size=\u00a0\u00bb60″ text_size=\u00a0\u00bbh2″ align=\u00a0\u00bbleft\u00a0\u00bb title=\u00a0\u00bbConclusion\u00a0\u00bb uncode_shortcode_id=\u00a0\u00bb659975″][\/vc_icon][vc_column_text uncode_shortcode_id=\u00a0\u00bb123777″]Notre processus de reconditionnement permet d’utiliser des embouts de pipette reconditionn\u00e9s dans des exp\u00e9riences n\u00e9cessitant une distribution pr\u00e9cise de faibles volumes.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row row_height_percent=\u00a0\u00bb0″ override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb2″ top_padding=\u00a0\u00bb2″ bottom_padding=\u00a0\u00bb2″ back_color=\u00a0\u00bbcolor-366045″ overlay_alpha=\u00a0\u00bb50″ equal_height=\u00a0\u00bbyes\u00a0\u00bb gutter_size=\u00a0\u00bb3″ column_width_percent=\u00a0\u00bb100″ shift_y=\u00a0\u00bb0″ z_index=\u00a0\u00bb0″ uncode_shortcode_id=\u00a0\u00bb224020″ back_color_type=\u00a0\u00bbuncode-palette\u00a0\u00bb][vc_column column_width_percent=\u00a0\u00bb100″ position_vertical=\u00a0\u00bbmiddle\u00a0\u00bb align_horizontal=\u00a0\u00bbalign_center\u00a0\u00bb gutter_size=\u00a0\u00bb2″ overlay_alpha=\u00a0\u00bb50″ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_wp_convertkit_post_meta":{"form":"-1","landing_page":"0","tag":"0","restrict_content":"0"},"footnotes":""},"categories":[166],"tags":[],"class_list":["post-120658","post","type-post","status-publish","format-standard","hentry","category-validation-fr"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/posts\/120658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/comments?post=120658"}],"version-history":[{"count":27,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/posts\/120658\/revisions"}],"predecessor-version":[{"id":121348,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/posts\/120658\/revisions\/121348"}],"wp:attachment":[{"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/media?parent=120658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/categories?post=120658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phoeniximpact.ca\/fr\/wp-json\/wp\/v2\/tags?post=120658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}