检验人如何用好移液枪？原来还有这些细节…-医疗器械网

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检验人如何用好移液枪？原来还有这些细节…

分类：操作使用 2023-09-14 12:46:28 8阅读次数

记得有一个单位，质量控制经常失控，而且找不到原因。后来发现，负责质控的老师使用样品枪不当，导致加样不准确。最近，很多实习生来到部门，我发现很多同学不知道如何正确使用移液枪，这会导致加样不准确，导致样品移液枪损坏。今天我就跟大家说说使用的注意事项。

01、安装尖端

用力按下移液器手柄，必要时轻轻旋转。

错误操作：用力撞击吸头。这种方法会造成吸头损坏，甚至磨损移液器手柄，从而影响其密封性。

学生经常举起枪尖，然后用力将其压在枪尖盒上。这是一件非常错误的事情。

02、尖端浸入角度

吸液时尽量保持垂直，倾斜角度不要超过20°。

03、吸气速度

连续均匀地移液，并控制好移液速度。太快会导致液体喷雾、液体或气溶胶冲入移液器内部并污染活塞和其他部件。

有时心急，控制不住速度，就会导致液体直接冲进样品枪，对样品枪造成很大的损坏。因此，大家在吸放样品时都需要操作流畅，慢慢吸进去，慢慢放出来。另外，如果您在做PCR等容易受到干扰的项目，则需要使用带有滤芯的移液器吸头。

04、移液器放置

当吸头含有未分装的液体时，移液器平放后液体可能会流入移液器本体，这会影响移液器的内部组件，并可能造成严重损坏、交叉污染等。所以一定要垂直挂在移液器架上。

05、测量范围

无法用大容量移液器移取少量液体是移液器不准确的主要原因。移液器的选择应以最大容量和最接近预期移液量的选择为原则。

另外，在使用移液枪后，最好将移液枪调整到最大范围，这样可以使移液枪内的海绵处于最松弛的状态。

最主要的是以上，从此大家都是用枪高手了！

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检验人如何用好移液枪？原来还有这些细节…

记得有一个单位，质量控制经常失控，而且找不到原因。后来发现，负责质控的老师使用样品枪不当，导致加样不准确。最近，很多实习生来到部门，我发现很多同学不知道如何正确使用移液枪，这会导致加样不准确，导致样品移液枪损坏。今天我就跟大家说说使用的注意事项。

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[8]未定义数组索引: page
[2]Declaration of app\common\model\TechNewsCategory::getList($filter = Array) should be compatible with app\common\model\BaseModel::getList($filter = Array, $sort = Array)
[8]未定义数组下标: 0
[2]Declaration of app\common\model\TechNews::getAllList($filter = Array, $limit = 10, $order = Array, $with = Array) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[2]Declaration of app\common\model\Company::getAllList($filter = Array, $limit = 20) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8]未定义数组索引: center
[8]Only variables should be passed by reference
[2]Declaration of app\common\model\TechNewsComment::getAllList($filter = Array, $limit = 16) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8192]Function create_function() is deprecated
[8192]Function create_function() is deprecated
[8]未定义数组索引: area
[8]未定义数组索引: st
[2]Declaration of app\common\model\Topic::getList($filter = Array) should be compatible with app\common\model\BaseModel::getList($filter = Array, $sort = Array)
[2]Declaration of app\common\model\Topic::getAllList($filter = Array, $field = 'id,md5,tit...', $limit = 0) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[2]Declaration of app\common\model\TopicInfoList::getAllList($filter = Array, $limit = 8) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[2]Declaration of app\common\model\News::getAllList($filter = Array, $limit = 16, $order = Array, $with = Array) should be compatible with app\common\model\BaseModel::getAllList($filter = Array, $with = Array, $limit = 0, $sort = Array, $field = 'a.*', $join = Array)
[8]未定义数组索引: center
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: cid
[8]未定义数组索引: goods_list
[8]未定义数组下标: 0
[8]未定义数组索引: center
[8]未定义数组索引: center
[8]未定义数组索引: center
[8]未定义数组索引: center
[8]未定义数组索引: center
[8]未定义数组索引: wtt_list

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[ SQL ] SELECT `id`,`name` FROM `tech_news_category` WHERE `is_show` = 1 [ RunTime:0.000234s ]
[ SQL ] SELECT * FROM `tech_news_category` WHERE `parent_id` = 0 AND `is_show` = 1 ORDER BY `sort` ASC,`id` DESC [ RunTime:0.000260s ]
[ SQL ] SHOW COLUMNS FROM `company` [ RunTime:0.000933s ]
[ SQL ] SHOW COLUMNS FROM `tech_news` [ RunTime:0.000808s ]
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[ SQL ] SHOW COLUMNS FROM `topic_info_list` [ RunTime:0.000825s ]
[ SQL ] SELECT * FROM `topic_info_list` WHERE `topic_id` = 1 ORDER BY `id` DESC LIMIT 2 [ RunTime:0.000183s ]
[ SQL ] SHOW COLUMNS FROM `news` [ RunTime:0.000878s ]
[ SQL ] SELECT * FROM `news` WHERE `id` IN (864,849) [ RunTime:0.000249s ]
[ SQL ] SELECT `id`,`md5`,`title`,`created_time` FROM `tech_news` WHERE `review_status` = 1 AND `is_show` = 1 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000213s ]
[ SQL ] SHOW COLUMNS FROM `user` [ RunTime:0.000840s ]
[ SQL ] SELECT `a`.* FROM `user` `a` INNER JOIN `tech_news` `b` ON `a`.`id`=`b`.`user_id` GROUP BY `a`.`id` ORDER BY `b`.`id` DESC LIMIT 10 [ RunTime:0.005485s ]
[ SQL ] SELECT * FROM `user_info` WHERE `user_id` IN (592,413,444,224,13,239,598,697,394,285) [ RunTime:0.000855s ]
[ SQL ] SHOW COLUMNS FROM `seo` [ RunTime:0.000909s ]
[ SQL ] SELECT * FROM `seo` WHERE `column_type` = '16' AND `page_type` = 'tech_news' AND `info_id` = 1185 LIMIT 1 [ RunTime:0.000220s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 1185 [ RunTime:0.001061s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 3596 [ RunTime:0.001090s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 2930 [ RunTime:0.001105s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 2889 [ RunTime:0.001116s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 2200 [ RunTime:0.001054s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 1964 [ RunTime:0.001024s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 1452 [ RunTime:0.001014s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 1420 [ RunTime:0.001090s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 1403 [ RunTime:0.001067s ]
[ SQL ] SELECT * FROM `tech_news_belong_category` WHERE `tech_news_id` = 3872 [ RunTime:0.001037s ]
[ SQL ] SELECT * FROM `user` WHERE `id` = 178 LIMIT 1 [ RunTime:0.000193s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 592 LIMIT 1 [ RunTime:0.000245s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 592 LIMIT 1 [ RunTime:0.000195s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 413 LIMIT 1 [ RunTime:0.000179s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 413 LIMIT 1 [ RunTime:0.000205s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 444 LIMIT 1 [ RunTime:0.000179s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 444 LIMIT 1 [ RunTime:0.000342s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 224 LIMIT 1 [ RunTime:0.000194s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 224 LIMIT 1 [ RunTime:0.000302s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 13 LIMIT 1 [ RunTime:0.000182s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 13 LIMIT 1 [ RunTime:0.000319s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 239 LIMIT 1 [ RunTime:0.000173s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 239 LIMIT 1 [ RunTime:0.000303s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 598 LIMIT 1 [ RunTime:0.000179s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 598 LIMIT 1 [ RunTime:0.000159s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 697 LIMIT 1 [ RunTime:0.000220s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 697 LIMIT 1 [ RunTime:0.000163s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 394 LIMIT 1 [ RunTime:0.000245s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 394 LIMIT 1 [ RunTime:0.000158s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `follow_user_id` = 285 LIMIT 1 [ RunTime:0.000160s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `user_follow` WHERE `user_id` = 285 LIMIT 1 [ RunTime:0.000173s ]

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