全氟化合物，简称PFCs，是有机化合物分子中的氢被氟取代形成C-F键的化合物，如果化合物分子中所有氢都被氟取代，则称为全氟有机化合物。由于PFCs拥有极难被破坏的C-F键，PFCs难以降解，会在环境和人体中累积，已被列入新型持久性有机污染物。
2024年3月19日，据新闻报道，日本多地陆续出现水体和居民血液中有机氟化合物含量偏高，可能与长期饮用含有高浓度全氟和多氟烷基物质的自来水有关。PFCs含有水溶性官能团，在水中溶解度大，能在水体中长期大量存在，其污染成为关系到环境和人类健康的重要议题。
GB 5749-2022《生活饮用水卫生标准》中，规定了全氟辛酸和全氟辛烷磺酸的限量要求分别不得超过80 ng/L和40 ng/L。本文参考GB 5750.8 84介绍大体积水样中全氟化合物残留前处理解决方案，采用Leowlab Purifier A12正压固相萃取仪实现大体积水样自动上样萃取，搭配Leowlab SmartVap QE全自动氮吹浓缩仪使用，仪器所有管路采用无氟材质，让实验更加严谨，排除前处理过程带入的可能。
[/fusion_text][fusion_builder_row_inner][fusion_builder_column_inner type=”1_3″ type=”1_3″ align_self=”auto” content_layout=”column” align_content=”flex-start” valign_content=”flex-start” content_wrap=”wrap” center_content=”no” column_tag=”div” target=”_self” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” order_medium=”0″ order_small=”0″ hover_type=”none” border_style=”solid” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ lazy_load=”avada” background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” background_slider_skip_lazy_loading=”no” background_slider_loop=”yes” background_slider_pause_on_hover=”no” background_slider_slideshow_speed=”5000″ background_slider_animation=”fade” background_slider_direction=”up” 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filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ image_id=”6064|fusion-400″ link=”https://leowlab.com/positive-pressure-solid-phase-extractor/purifier-a12/” caption_title=”Leowlab Purifier A12″ caption_text=”12位正压固相萃取仪” caption_title_transform=”capitalize” caption_text_transform=”capitalize” caption_overlay_color=”hsla(var(–awb-color7-h),var(–awb-color7-s),calc(var(–awb-color7-l) + 40%),var(–awb-color7-a))” fusion_font_variant_caption_title_font=”600″ fusion_font_family_caption_title_font=”Montserrat” caption_title_size=”16″ caption_title_color=”var(–awb-color1)” fusion_font_variant_caption_text_font=”400″ fusion_font_family_caption_text_font=”Montserrat” caption_text_size=”16″ caption_border_color=”var(–awb-color1)” caption_text_color=”var(–awb-color1)”]https://leowlab.com/wp-content/uploads/2025/10/A12-400×400.jpg[/fusion_imageframe][/fusion_builder_column_inner][fusion_builder_column_inner type=”1_3″ type=”1_3″ align_self=”auto” content_layout=”column” 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animation_delay=”0″ last=”no” border_position=”all”][fusion_imageframe custom_aspect_ratio=”100″ lightbox=”no” linktarget=”_blank” align_medium=”none” align_small=”none” align=”center” hover_type=”none” magnify_duration=”120″ scroll_height=”100″ scroll_speed=”1″ caption_style=”resa” caption_align_medium=”none” caption_align_small=”none” caption_align=”center” caption_title_tag=”div” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ image_id=”6069|fusion-400″ link=”https://leowlab.com/nitrogen-evaporator/smartvap-qe/” caption_title=”Leowlab SmartVap QE” caption_title_transform=”capitalize” caption_text_transform=”capitalize” caption_overlay_color=”hsla(var(–awb-color7-h),var(–awb-color7-s),calc(var(–awb-color7-l) + 40%),var(–awb-color7-a))” fusion_font_variant_caption_title_font=”600″ fusion_font_family_caption_title_font=”Montserrat” caption_title_size=”16″ caption_title_color=”var(–awb-color1)” fusion_font_variant_caption_text_font=”400″ fusion_font_family_caption_text_font=”Montserrat” caption_text_size=”16″ caption_border_color=”var(–awb-color1)” caption_text=”全自动定量浓缩仪”]https://leowlab.com/wp-content/uploads/2025/10/QE-AE-400×400.jpg[/fusion_imageframe][/fusion_builder_column_inner][fusion_builder_column_inner type=”1_3″ type=”1_3″ align_self=”auto” content_layout=”column” align_content=”flex-start” valign_content=”flex-start” content_wrap=”wrap” center_content=”no” column_tag=”div” target=”_self” 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filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ transform_type=”regular” transform_hover_element=”self” transform_scale_x=”1″ transform_scale_y=”1″ transform_translate_x=”0″ transform_translate_y=”0″ transform_rotate=”0″ transform_skew_x=”0″ transform_skew_y=”0″ transform_scale_x_hover=”1″ transform_scale_y_hover=”1″ transform_translate_x_hover=”0″ transform_translate_y_hover=”0″ transform_rotate_hover=”0″ transform_skew_x_hover=”0″ transform_skew_y_hover=”0″ transition_duration=”300″ transition_easing=”ease” scroll_motion_devices=”small-visibility,medium-visibility,large-visibility” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ last=”no” border_position=”all”][fusion_imageframe custom_aspect_ratio=”100″ lightbox=”no” linktarget=”_blank” align_medium=”none” align_small=”none” align=”center” hover_type=”none” magnify_duration=”120″ scroll_height=”100″ scroll_speed=”1″ caption_style=”resa” caption_align_medium=”none” caption_align_small=”none” caption_align=”center” caption_title_tag=”div” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ image_id=”6071|fusion-400″ link=”https://leowlab.com/nitrogen-generator/nitrogen-evaporator-1/clart-mp-series/” caption_title=”Leowlab NG-MP” caption_text=”氮吹用氮气发生器” caption_title_transform=”capitalize” caption_text_transform=”capitalize” caption_overlay_color=”hsla(var(–awb-color7-h),var(–awb-color7-s),calc(var(–awb-color7-l) + 40%),var(–awb-color7-a))” fusion_font_variant_caption_title_font=”600″ fusion_font_family_caption_title_font=”Montserrat” caption_title_size=”16″ caption_title_color=”var(–awb-color1)” fusion_font_variant_caption_text_font=”400″ fusion_font_family_caption_text_font=”Montserrat” caption_text_size=”16″ caption_border_color=”var(–awb-color1)”]https://leowlab.com/wp-content/uploads/2025/10/氮发-中-400×400.jpg[/fusion_imageframe][/fusion_builder_column_inner][/fusion_builder_row_inner][fusion_title title_type=”text” scroll_reveal_effect=”color_change” scroll_reveal_basis=”chars” scroll_reveal_behavior=”always” scroll_reveal_duration=”500″ scroll_reveal_stagger=”200″ scroll_reveal_delay=”0″ scroll_reveal_above_fold=”yes” marquee_direction=”left” marquee_mask_edges=”no” marquee_speed=”15000″ rotation_effect=”bounceIn” display_time=”1200″ highlight_effect=”circle” loop_animation=”once” highlight_animation_duration=”1500″ highlight_width=”9″ highlight_smudge_effect=”no” highlight_top_margin=”0″ title_link=”off” link_target=”_self” content_align=”left” size=”div” text_shadow=”no” text_shadow_blur=”0″ text_stroke=”no” text_stroke_size=”1″ text_overflow=”none” gradient_font=”no” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ style_type=”default” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” font_size=”30″ fusion_font_variant_title_font=”600″ fusion_font_family_title_font=”Montserrat” margin_bottom=”30px” margin_top=”30px”]仪器设备
[/fusion_title][fusion_table fusion_table_type=”2″ fusion_table_rows=”4″ fusion_table_columns=”2″ animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility”]| 前处理仪器设备 | |
|---|---|
| 萃取仪 | Leowlab Purifier A12正压固相萃取仪 |
| 浓缩系统 | Leowlab SmartVap QE全自动氮吹浓缩仪 |
| 搭配浓缩系统仪器 | Leowlab NG-MP系列氮吹用氮气发生器 |
| 分析仪器 | |
|---|---|
| 液相质谱仪 | 配有电子喷雾离子源（ESI） |
前处理流程图
[/fusion_title][fusion_imageframe custom_aspect_ratio=”100″ lightbox=”no” linktarget=”_self” align_medium=”none” align_small=”none” align=”none” hover_type=”none” magnify_duration=”120″ scroll_height=”100″ scroll_speed=”1″ caption_style=”off” caption_align_medium=”none” caption_align_small=”none” caption_align=”none” caption_title_tag=”2″ animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ image_id=”7408|full”]https://leowlab.com/wp-content/uploads/2026/01/全氟化合物.png[/fusion_imageframe][fusion_title title_type=”text” scroll_reveal_effect=”color_change” scroll_reveal_basis=”chars” scroll_reveal_behavior=”always” scroll_reveal_duration=”500″ scroll_reveal_stagger=”200″ scroll_reveal_delay=”0″ scroll_reveal_above_fold=”yes” marquee_direction=”left” marquee_mask_edges=”no” marquee_speed=”15000″ rotation_effect=”bounceIn” display_time=”1200″ highlight_effect=”circle” loop_animation=”once” highlight_animation_duration=”1500″ highlight_width=”9″ highlight_smudge_effect=”no” highlight_top_margin=”0″ title_link=”off” link_target=”_self” content_align=”left” size=”div” text_shadow=”no” text_shadow_blur=”0″ text_stroke=”no” text_stroke_size=”1″ text_overflow=”none” gradient_font=”no” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ style_type=”default” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” font_size=”26″ fusion_font_variant_title_font=”600″ fusion_font_family_title_font=”Montserrat” margin_bottom=”30px” margin_top=”30px”]实验方法概要：
[/fusion_title][fusion_text animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ disable_idd=”no” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” fusion_font_variant_text_font=”400″ fusion_font_family_text_font=”Montserrat” columns=”1″]1. 量取1L水样，加入乙酸铵调pH；
2. 活化柱子后，1L水样通过自动吸取，采用Leowlab Purifier A12正压固相萃取仪净化；
3. 将（固相萃取仪配套的）过柱后的收集管直接放至Leowlab SmartVap QE全自动氮吹浓缩仪，40℃以下水浴，设置程序，自动氮吹近干。
4. 用甲醇水（3+7）复溶样品，定容至1mL，待上机。
[/fusion_text][fusion_title title_type=”text” scroll_reveal_effect=”color_change” scroll_reveal_basis=”chars” scroll_reveal_behavior=”always” scroll_reveal_duration=”500″ scroll_reveal_stagger=”200″ scroll_reveal_delay=”0″ scroll_reveal_above_fold=”yes” marquee_direction=”left” marquee_mask_edges=”no” marquee_speed=”15000″ rotation_effect=”bounceIn” display_time=”1200″ highlight_effect=”circle” loop_animation=”once” highlight_animation_duration=”1500″ highlight_width=”9″ highlight_smudge_effect=”no” highlight_top_margin=”0″ title_link=”off” link_target=”_self” content_align=”left” size=”div” text_shadow=”no” text_shadow_blur=”0″ text_stroke=”no” text_stroke_size=”1″ text_overflow=”none” gradient_font=”no” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ style_type=”default” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” font_size=”30″ fusion_font_variant_title_font=”600″ fusion_font_family_title_font=”Montserrat” margin_bottom=”30px” margin_top=”30px”]结论
[/fusion_title][fusion_text animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ disable_idd=”no” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” fusion_font_variant_text_font=”400″ fusion_font_family_text_font=”Montserrat” columns=”1″]全氟化合物是近几年的研究热点，而且是水样中重点关注的检测项目，大体积水样相比负压装置过柱，自动上样效率更高，可同时处理12个；过柱过程，压力稳定，流速可控，可获得极佳的重复性和回收率。
[/fusion_text][fusion_title title_type=”text” scroll_reveal_effect=”color_change” scroll_reveal_basis=”chars” scroll_reveal_behavior=”always” scroll_reveal_duration=”500″ scroll_reveal_stagger=”200″ scroll_reveal_delay=”0″ scroll_reveal_above_fold=”yes” marquee_direction=”left” marquee_mask_edges=”no” marquee_speed=”15000″ rotation_effect=”bounceIn” display_time=”1200″ highlight_effect=”circle” loop_animation=”once” highlight_animation_duration=”1500″ highlight_width=”9″ highlight_smudge_effect=”no” highlight_top_margin=”0″ title_link=”off” link_target=”_self” content_align=”left” size=”div” text_shadow=”no” text_shadow_blur=”0″ text_stroke=”no” text_stroke_size=”1″ text_overflow=”none” gradient_font=”no” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ style_type=”default” animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” font_size=”30″ fusion_font_variant_title_font=”600″ fusion_font_family_title_font=”Montserrat” margin_bottom=”30px” margin_top=”30px”]方案特点
[/fusion_title][fusion_text animation_direction=”left” animation_speed=”0.3″ animation_delay=”0″ disable_idd=”no” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” fusion_font_variant_text_font=”400″ fusion_font_family_text_font=”Montserrat” columns=”1″]1. 大体积水样自动上样，并且可同时处理12个，大大减少前处理时间，提高效率。
2. 很好的重复性和回收率：正压过柱相比负压压力稳定，流速可控。、
3. 净化到浓缩收集管直接转移：全自动氮吹浓缩仪，接收管体积0-50mL，净化完的接收管可直接转移至Leowlab SmartVap QE全自动氮吹浓缩仪氮吹，减少样品在转移过程中的损失。
4. 自动定量浓缩：Leowlab SmartVap QE可自动定量浓缩至0.5/1mL。
5. 仪器所有管路采用无氟材质：排除杂质带入干扰实验结果，让实验更加严谨可控。
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