产品介绍
恶喹酸检测试剂盒
价 格:¥电议
型 号:
产品完善度:
生产地:其他访问量:21次
发布日期:2016/8/20 21:26:07
更新日期:2016/8/20 21:26:07
详细内容
高回收率(75%-105%),多种样品的低成本提取方法;高重复性;检测过程只需要不到1.5小时;五合一处理方法更省时、经济、环保。
产品概述
恶喹酸检测试剂盒酶联免疫反应测试盒基于竞争性酶联反应原理,含有恶喹酸检测试剂盒(SEM)的抗体已经包被于微孔板上。药物分析时,样品同SEM-HRP共同被添加到板孔中。如果样品中含有SEM,会竞争SEM抗体,抑制SEM-HRP与板上包被的抗体结合。加入底物后,产物的颜色强弱与样品中SEM的浓度成反比。
试剂盒组成
已包被的酶标板(可拆式) 12×8 孔
标准液(0,0.025,0.1,0.4,1.6,6.4ppb) 6×2.0mL
回收用10ppb(Spiking)——可选 1×0.8ml
HRP酶标抗原(HRP-Conjugated) 1×6mL
10×样品提取液(Sample Extraction Buffer) 1×25mL
20×浓缩洗液(Wash Solution) 1×30mL
终止液(Stop Buffer) 1×20mL
TMB底物(TMB Substrate) 1×10mL
50mM 2-硝基苯甲醛(2-Nitrobenzaldehyde) 1×1.8mL
本试剂盒应当在2-8℃的温度下储存,有效期为一年。如果超过3个月不使用试剂盒,
请将SEM-HRP酶标抗原放置-20℃或者冰冻保存。
检测试剂盒以外需要提供的设备或材料
1) 酶标仪(450 nm)
2) 恒温培养箱
3) 匀浆器
4) 蒸干器
5) 漩涡振荡器
6) 移液枪(50,100mL,1mL各一支)
7) 多道移液器(50-300mL)
8) 乙酸乙酯
9) 0.1M K2HPO4
10) 正己烷
注意事项
实验前请阅读以下文字,以保证获得佳实验效果。
1) 标准品中含有恶喹酸检测试剂盒,请小心使用。
2) 不要使用过期的试剂盒。
3) 不同批次的试剂盒不要混用,抗体和微孔板具有盒与批次的特异性。
4) 尽量保持室温20-25℃,避免在通风口操作防止温度过低,过热和/或者蒸发。同样的,不要在阳光直射下实验,防止过热及蒸发。在孵育期间,如果工作台温度过低,应该铺垫若干纸巾或者其他物料。
5) 水质量很重要,确保使用蒸馏或者去离子水。
6) 加入样品或者试剂到空的微孔板时,吸嘴靠于微孔接近底部,并保持接触。
7) 孵育时间的计算越规范越好,保持添加标准品的一致性,先添加标准品后添加样品。
8) 从低浓度到高浓度地添加标准品,降低影响标准品曲线质量的风险。
9) 将微孔板置于放有干燥剂的密封袋中,冷藏保存。
样品的准备【恶喹酸检测试剂盒】
确保样品的正确保存,一般来说,样品在2-4只能保存1-2天,如果要保存更长时间,就要保存在-20冷冻保存,在用之前需要将冷冻的样品在室温下或冰箱内解冻。
1×样品提取液
按1:9的比例配制样品提取浓缩液和双蒸馏水。
1)饲料(用于检测添加到饲料中的鱼粉、虾粉或动物组织的SEM)
(1) 取0.5g匀质样品,加入0.5mL1×样品提取液,3.5mL蒸馏水,0.5mL 1M HCl和20 µL 50 mM 2-硝基苯甲醛,涡旋振荡1min;
(2) 50°C恒温培养3小时,在培养期间,每1h振荡5秒;
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH,6 mL 乙酸乙酯,转速涡旋震荡1min;
(4) 室温下4000g离心10分钟;
(5) 取3mL乙酸乙酯上清液(含0.25g初始样品)到另一试管(避免触及下层水相!如果
移取液中含有水相,再次4000g离心5分钟,取上层有机相),在60-70 °C减压蒸馏或60-70°C氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(7) 加入1mL1×样品提取液,转速涡旋振荡2分钟;
(8) 室温下4000g离心10分钟;
(9) 每孔取100 µL下清液,进行样品测试。
稀释倍数:4.0
2)鱼/虾/肉(牛肉/鸡肉/猪肉):可用于五合一前处理方法
(1) 称取1g匀浆样品加入0.5mL1×样品提取液,3.5mL蒸馏水,0.5mL 1M HCl和20µL50 mM 2-硝基苯甲醛,涡旋震荡30秒;
(2) 50°C恒温培养3h,培养期间,每1h振荡5秒;(说明书后的**标记方法可供选择)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH, 6 mL 乙酸乙酯,涡旋震荡振荡30s;
(4) 室温下(20-25℃)4000g离心10分钟;
(5) 取3mL上清液(包含了0.5g的原始样品)到另一试管(避免触及下层水相!如果移取液中含有水相,再次4000g离心5分钟,取上层有机相),如果出现乳化现象,上清液不足3mL,请85℃水浴3分钟。在60 -70°C减压蒸馏或60-70°C氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;(注:肝脏组织富含脂肪、色素等,为防止乳化现象,建议选用4mL正己烷溶解,涡旋震荡30秒后,再进行下一步操作)
(7) 加入1mL1×样品提取液,剧烈振荡1分钟;
(8) 室温下4000g离心10分钟;
(9) 每孔取100 µL下清液,进行样品测试。
注意:为了避免过高的背景值,建议用空白样品做平行,从取3ml乙酸乙酯上清旋转蒸发开始。
稀释倍数:2.0
3)鸡蛋【恶喹酸检测试剂盒】
(1) 称取1g鸡蛋样品加入0.5mL1×样品提取液,3.5mL蒸馏水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,剧烈振荡30秒;
(2) 50°C恒温培养3小时,在培养期间,每1h振荡5秒;(说明书后的**标记方法可供选择)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH, 6 mL 乙酸乙酯,涡旋震荡振荡30s;
(4) 室温下4000g离心10分钟;
(5) 取3mL上清液(包含了0.5g的原始样品) 到另一试管(避免触及下层水相!如果移取液中含有水相,再次4000g离心5分钟,取上层有机相),在60-70℃减压蒸馏或60-70℃氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(7) 加入1mL1×样品抽提工作液体,剧烈振荡2分钟;
(8) 室温下4000g离心10分钟;
(9) 每孔取100µL下清液,进行样品测试。
稀释倍数:2.0
注意:为了避免过高的背景值,建议用空白样品做平行,从取3ml乙酸乙酯上清旋转蒸发开始。
4)蜂蜜
(1) 称取1g蜂蜜加入0.5mL1×样品提取液,3.5mL双蒸水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,剧烈振荡1分钟;
(2) 50°C恒温培养3小时;(说明书后的**标记方法可供选择)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,转速振荡1min;
(4) 室温下4000g离心10分钟;
(5) 取3mL上清液(包含了0.5g的原始样品) 到另一试管(避免触及下层水相!如果移取液中含有水相,再次4000g离心5分钟,取上层有机相),在60 -70°C减压蒸馏或60-70°C氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(7) 加入1mL1×样品提取液,剧烈振荡2分钟;
(8) 室温下4000g离心10分钟;
(9) 每孔取100 µL下清液,进行样品测试。
稀释倍数:2.0
5)牛奶
(1) 对于含脂牛奶,取待测牛奶样品3ml室温4000g,5min。除去上层脂肪层。(对于脱脂奶粉,次步略)
(2) 取1ml样品,加入0.5mL1×样品提取液,3.5mL双蒸水,0.5mL 1M HCL和40µL 50 mM 2-硝基苯甲醛,剧烈振荡1分钟;
(3) 50°C恒温培养3小时;(说明书后的**标记方法可供选择)
(4) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH,6 mL 乙酸乙酯,转速振荡1min;室温下4000g离心10分钟;
(5) 取3mL上清液(包含了0.5g的原始样品) 到另一试管(避免触及下层水相!如果移取液中含有水相,再次4000g离心5分钟,取上层有机相),在60 -70°C减压蒸馏或60-70°C氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(7) 加入1mL1×样品提取液,剧烈振荡2分钟;
(8) 室温下4000g离心10分钟;
(9) 每孔取100 µL下清液,进行样品测试。
稀释倍数:2.0
6)血清【恶喹酸检测试剂盒】
(1) 称取1g血清加入0.5mL1×样品提取液,3.5mL双蒸水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,剧烈振荡1分钟;
(2) 50°C恒温培养3小时;(说明书后的**标记方法可供选择)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,转速振荡1min;
(4) 室温下4000g离心10分钟;
(5) 取3mL上清液(包含了0.5g的原始样品) 到另一试管(避免触及下层水相!如果移
取液中含有水相,再次4000g离心5分钟,取上层有机相),在60 -70°C减压蒸馏或60-70°C氮气吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(7) 加入1mL1×样品提取液,剧烈
(8) 振荡2分钟;
(9) 室温下4000g离心10分钟;
(10) 每孔取100 µL下清液,进行样品测试。
稀释倍数:2.0
7)尿样
(1) 取3ml尿样,4000g离心5min。
(2) 离心后称取1ml,加入0.5mL1×样品提取液,3.5mL双蒸水,0.5mL 1M HCL和40µL 50 mM 2-硝基苯甲醛,剧烈振荡1分钟;
(3) 50°C恒温培养3小时;(说明书后的**标记方法可供选择)
(4) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,转速振荡1min;
(5) 室温下4000g离心10分钟;
(6) 取3mL上清液(包含了0.5g的原始样品) 到另一试管(避免触及下层水相!如果移取液中含有水相,再次4000g离心5分钟,取上层有机相),在60 -70°C减压蒸馏或60-70°C氮气吹干;
(7) 用1 mL 正己烷(或者正庚烷)溶解干燥好的样品;
(8) 加入1mL1×样品提取液,剧烈振荡2分钟;
(9) 室温下4000g离心10分钟;
(10) 每孔取100 µL下清液,进行样品测试。
稀释倍数:2.0
检测步骤
试剂的准备
注意:试剂在使用之前要在室温下解冻1-2小时,确定在使用前阅读过注意事项。准备适量的检测用试剂,所有的试剂摇匀后使用。准备足够所有小管所需的用量,不能将试剂倒回原来的瓶子中,处理试剂时建议用废弃的瓶子以降低污染的风险。
1x洗液的制备
1体积的20x洗液同19体积的蒸馏水混合
检测
\以下为计算份量的表格,用户可根据自己的需要来确定需要配置多少试剂。
试剂 | 每个反应需要的体积 | 24次反应的体积 |
SEM-HRP | 50 mL | 1.2mL |
1×洗液 | 1mL | 24 mL |
终止液 | 100 mL | 2.4 mL |
底物 | 100 mL | 2.4 mL |
底物 | 100 mL | 2.4 mL |
(1) 加入100mL的标准品于所设定的孔中;
(2) 加入100mL的样品于所设定的孔中
(3) 在每孔中加入50mL 1×SEM-HRP,轻敲微孔板边缘混匀1分钟;
(4) 室温(22.5±2.5)°C避光孵育30分钟;
(5) 洗板3次,每次应该加入250mL 1×洗液,后一次使板尽量甩干并在吸水纸上吸干;
(6) 每孔加入100mL的TMB底物;
(7) 在室温(22.5±2.5)°C避光孵育20分钟后,每孔加入100mL的终止液终止反应;
(8) 在450nm或450/650nm下读OD值 (读数前,用吸水纸将板底部的指痕和水分擦去,避免影响读数)。
10.结果计算【恶喹酸检测试剂盒】
(1) 分别计算标准、质控和样品的平均吸光度值和相对吸光度值。
相对吸光度值 (%) = (标准或样品吸光度值/零标准吸光度值) ´ 100
(2) 以相对吸光度值为纵坐标,标准浓度为横坐标建立标准曲线。
(3) 从标准曲线上读取质控和样品的浓度值。
(4) 样品检测下限计算方法如下:
样品检测下限 = (0.025ng/g) ´ (稀释倍数)
样品定量下限 = (0.1ng/g) ´ (稀释倍数)
例如,肉类样品的稀释倍数是2.0,那么肉类样品的检测下限是0.05ppb,定量检测下限是0.2ppb。
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QY-x1735 转染四环素正向调控表达基因7402细胞 BEL-7402-Tet-on
QY-x1736 转染绿色荧光蛋白和四环素正向调控表达基因7402细胞 7402-Tet-on-EGFP
QY-x1737 人胰腺癌细胞 Panc-1
QY-x1738 人胰腺癌细胞 SW1990
QY-x1739 人口腔上皮癌细胞 KB
QY-x1740 人口底癌细胞耐药株[长春新碱(VCR)诱导高表达(p-gp)] KV
QY-x1741 人肺巨细胞癌细胞 HLAmP
QY-x1742 人肺腺癌细胞 GLC-82
QY-x1743 人肺腺癌细胞(转染TK基因的GLC-82细胞) GLC-82-TK
QY-x1744 人鼻咽癌细胞(高分化) CNE-1
QY-x1745 人鼻咽癌细胞 SUME-a
QY-x1746 人鼻咽癌细胞 HNE-2 【恶喹酸检测试剂盒】
QY-x1747 人慢性髓原白血病细胞 K562
QY-x1748 人组织细胞淋巴瘤细胞 U937
QY-x1749 人红白细胞白血病细胞Erythroleukemia HEL
QY-x1750 人急性T淋巴母细胞白血病细胞 MOLT-4
QY-x1751 人急性早幼粒白血病细胞(悬浮) NB4
QY-x1752 人骨肉瘤细胞 SW1353
QY-x1753 人白血病细胞 Daudi
QY-x1754 转染了tk基因的SW038-C2细胞 SW038-C2-tk
QY-x1755 人星形胶质细胞瘤细胞 SHC-44