產(chǎn)品展示
惡喹酸檢測試劑盒
點擊次數(shù):21發(fā)布時間:2016/8/20 21:26:07

更新日期:2016/8/20 21:26:07
所 在 地:中國大陸
產(chǎn)品型號:
優(yōu)質(zhì)供應
詳細內(nèi)容
高回收率(75%-105%),多種樣品的低成本提取方法;高重復性;檢測過程只需要不到1.5小時;五合一處理方法更省時、經(jīng)濟、環(huán)保。
產(chǎn)品概述
惡喹酸檢測試劑盒酶聯(lián)免疫反應測試盒基于競爭性酶聯(lián)反應原理,含有惡喹酸檢測試劑盒(SEM)的抗體已經(jīng)包被于微孔板上。藥物分析時,樣品同SEM-HRP共同被添加到板孔中。如果樣品中含有SEM,會競爭SEM抗體,抑制SEM-HRP與板上包被的抗體結合。加入底物后,產(chǎn)物的顏色強弱與樣品中SEM的濃度成反比。
試劑盒組成
已包被的酶標板(可拆式) 12×8 孔
標準液(0,0.025,0.1,0.4,1.6,6.4ppb) 6×2.0mL
回收用10ppb(Spiking)——可選 1×0.8ml
HRP酶標抗原(HRP-Conjugated) 1×6mL
10×樣品提取液(Sample Extraction Buffer) 1×25mL
20×濃縮洗液(Wash Solution) 1×30mL
終止液(Stop Buffer) 1×20mL
TMB底物(TMB Substrate) 1×10mL
50mM 2-硝基苯甲醛(2-Nitrobenzaldehyde) 1×1.8mL
本試劑盒應當在2-8℃的溫度下儲存,有效期為一年。如果超過3個月不使用試劑盒,
請將SEM-HRP酶標抗原放置-20℃或者冰凍保存。
檢測試劑盒以外需要提供的設備或材料
1) 酶標儀(450 nm)
2) 恒溫培養(yǎng)箱
3) 勻漿器
4) 蒸干器
5) 漩渦振蕩器
6) 移液槍(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
注意事項
實驗前請閱讀以下文字,以保證獲得*佳實驗效果。
1) 標準品中含有惡喹酸檢測試劑盒,請小心使用。
2) 不要使用過期的試劑盒。
3) 不同批次的試劑盒不要混用,抗體和微孔板具有盒與批次的特異性。
4) 盡量保持室溫20-25℃,避免在通風口操作防止溫度過低,過熱和/或者蒸發(fā)。同樣的,不要在陽光直射下實驗,防止過熱及蒸發(fā)。在孵育期間,如果工作臺溫度過低,應該鋪墊若干紙巾或者其他物料。
5) 水質(zhì)量很重要,確保使用蒸餾或者去離子水。
6) 加入樣品或者試劑到空的微孔板時,吸嘴靠于微孔接近底部,并保持接觸。
7) 孵育時間的計算越規(guī)范越好,保持添加標準品的一致性,先添加標準品后添加樣品。
8) 從低濃度到高濃度地添加標準品,降低影響標準品曲線質(zhì)量的風險。
9) 將微孔板置于放有干燥劑的密封袋中,冷藏保存。
樣品的準備【惡喹酸檢測試劑盒】
確保樣品的正確保存,一般來說,樣品在2-4只能保存1-2天,如果要保存更長時間,就要保存在-20冷凍保存,在用之前需要將冷凍的樣品在室溫下或冰箱內(nèi)解凍。
1×樣品提取液
按1:9的比例配制樣品提取濃縮液和雙蒸餾水。
1)飼料(用于檢測添加到飼料中的魚粉、蝦粉或動物組織的SEM)
(1) 取0.5g勻質(zhì)樣品,加入0.5mL1×樣品提取液,3.5mL蒸餾水,0.5mL 1M HCl和20 µL 50 mM 2-硝基苯甲醛,渦旋振蕩1min;
(2) 50°C恒溫培養(yǎng)3小時,在培養(yǎng)期間,每1h振蕩5秒;
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH,6 mL 乙酸乙酯,轉速渦旋震蕩1min;
(4) 室溫下4000g離心10分鐘;
(5) 取3mL乙酸乙酯上清液(含0.25g初始樣品)到另一試管(避免觸及下層水相!如果
移取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60-70 °C減壓蒸餾或60-70°C氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(7) 加入1mL1×樣品提取液,轉速渦旋振蕩2分鐘;
(8) 室溫下4000g離心10分鐘;
(9) 每孔取100 µL下清液,進行樣品測試。
稀釋倍數(shù):4.0
2)魚/蝦/肉(牛肉/雞肉/豬肉):可用于五合一前處理方法
(1) 稱取1g勻漿樣品加入0.5mL1×樣品提取液,3.5mL蒸餾水,0.5mL 1M HCl和20µL50 mM 2-硝基苯甲醛,渦旋震蕩30秒;
(2) 50°C恒溫培養(yǎng)3h,培養(yǎng)期間,每1h振蕩5秒;(說明書后的**標記方法可供選擇)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH, 6 mL 乙酸乙酯,渦旋震蕩振蕩30s;
(4) 室溫下(20-25℃)4000g離心10分鐘;
(5) 取3mL上清液(包含了0.5g的原始樣品)到另一試管(避免觸及下層水相!如果移取液中含有水相,再次4000g離心5分鐘,取上層有機相),如果出現(xiàn)乳化現(xiàn)象,上清液不足3mL,請85℃水浴3分鐘。在60 -70°C減壓蒸餾或60-70°C氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;(注:肝臟組織富含脂肪、色素等,為防止乳化現(xiàn)象,建議選用4mL正己烷溶解,渦旋震蕩30秒后,再進行下一步操作)
(7) 加入1mL1×樣品提取液,劇烈振蕩1分鐘;
(8) 室溫下4000g離心10分鐘;
(9) 每孔取100 µL下清液,進行樣品測試。
注意:為了避免過高的背景值,建議用空白樣品做平行,從取3ml乙酸乙酯上清旋轉蒸發(fā)開始。
稀釋倍數(shù):2.0
3)雞蛋【惡喹酸檢測試劑盒】
(1) 稱取1g雞蛋樣品加入0.5mL1×樣品提取液,3.5mL蒸餾水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,劇烈振蕩30秒;
(2) 50°C恒溫培養(yǎng)3小時,在培養(yǎng)期間,每1h振蕩5秒;(說明書后的**標記方法可供選擇)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH, 6 mL 乙酸乙酯,渦旋震蕩振蕩30s;
(4) 室溫下4000g離心10分鐘;
(5) 取3mL上清液(包含了0.5g的原始樣品) 到另一試管(避免觸及下層水相!如果移取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60-70℃減壓蒸餾或60-70℃氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(7) 加入1mL1×樣品抽提工作液體,劇烈振蕩2分鐘;
(8) 室溫下4000g離心10分鐘;
(9) 每孔取100µL下清液,進行樣品測試。
稀釋倍數(shù):2.0
注意:為了避免過高的背景值,建議用空白樣品做平行,從取3ml乙酸乙酯上清旋轉蒸發(fā)開始。
4)蜂蜜
(1) 稱取1g蜂蜜加入0.5mL1×樣品提取液,3.5mL雙蒸水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,劇烈振蕩1分鐘;
(2) 50°C恒溫培養(yǎng)3小時;(說明書后的**標記方法可供選擇)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,轉速振蕩1min;
(4) 室溫下4000g離心10分鐘;
(5) 取3mL上清液(包含了0.5g的原始樣品) 到另一試管(避免觸及下層水相!如果移取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60 -70°C減壓蒸餾或60-70°C氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(7) 加入1mL1×樣品提取液,劇烈振蕩2分鐘;
(8) 室溫下4000g離心10分鐘;
(9) 每孔取100 µL下清液,進行樣品測試。
稀釋倍數(shù):2.0
5)牛奶
(1) 對于含脂牛奶,取待測牛奶樣品3ml室溫4000g,5min。除去上層脂肪層。(對于脫脂奶粉,次步略)
(2) 取1ml樣品,加入0.5mL1×樣品提取液,3.5mL雙蒸水,0.5mL 1M HCL和40µL 50 mM 2-硝基苯甲醛,劇烈振蕩1分鐘;
(3) 50°C恒溫培養(yǎng)3小時;(說明書后的**標記方法可供選擇)
(4) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH,6 mL 乙酸乙酯,轉速振蕩1min;室溫下4000g離心10分鐘;
(5) 取3mL上清液(包含了0.5g的原始樣品) 到另一試管(避免觸及下層水相!如果移取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60 -70°C減壓蒸餾或60-70°C氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(7) 加入1mL1×樣品提取液,劇烈振蕩2分鐘;
(8) 室溫下4000g離心10分鐘;
(9) 每孔取100 µL下清液,進行樣品測試。
稀釋倍數(shù):2.0
6)血清【惡喹酸檢測試劑盒】
(1) 稱取1g血清加入0.5mL1×樣品提取液,3.5mL雙蒸水,0.5mL 1M HCL和20µL 50 mM 2-硝基苯甲醛,劇烈振蕩1分鐘;
(2) 50°C恒溫培養(yǎng)3小時;(說明書后的**標記方法可供選擇)
(3) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,轉速振蕩1min;
(4) 室溫下4000g離心10分鐘;
(5) 取3mL上清液(包含了0.5g的原始樣品) 到另一試管(避免觸及下層水相!如果移
取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60 -70°C減壓蒸餾或60-70°C氮氣吹干;
(6) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(7) 加入1mL1×樣品提取液,劇烈
(8) 振蕩2分鐘;
(9) 室溫下4000g離心10分鐘;
(10) 每孔取100 µL下清液,進行樣品測試。
稀釋倍數(shù):2.0
7)尿樣
(1) 取3ml尿樣,4000g離心5min。
(2) 離心后稱取1ml,加入0.5mL1×樣品提取液,3.5mL雙蒸水,0.5mL 1M HCL和40µL 50 mM 2-硝基苯甲醛,劇烈振蕩1分鐘;
(3) 50°C恒溫培養(yǎng)3小時;(說明書后的**標記方法可供選擇)
(4) 加入5mL 0.1 M K2HPO4,0.4 mL 1 M NaOH , 6 mL 乙酸乙酯,轉速振蕩1min;
(5) 室溫下4000g離心10分鐘;
(6) 取3mL上清液(包含了0.5g的原始樣品) 到另一試管(避免觸及下層水相!如果移取液中含有水相,再次4000g離心5分鐘,取上層有機相),在60 -70°C減壓蒸餾或60-70°C氮氣吹干;
(7) 用1 mL 正己烷(或者正庚烷)溶解干燥好的樣品;
(8) 加入1mL1×樣品提取液,劇烈振蕩2分鐘;
(9) 室溫下4000g離心10分鐘;
(10) 每孔取100 µL下清液,進行樣品測試。
稀釋倍數(shù):2.0
檢測步驟
試劑的準備
注意:試劑在使用之前要在室溫下解凍1-2小時,確定在使用前閱讀過注意事項。準備適量的檢測用試劑,所有的試劑搖勻后使用。準備足夠所有小管所需的用量,不能將試劑倒回原來的瓶子中,處理試劑時建議用廢棄的瓶子以降低污染的風險。
1x洗液的制備
1體積的20x洗液同19體積的蒸餾水混合
檢測
\以下為計算份量的表格,用戶可根據(jù)自己的需要來確定需要配置多少試劑。
試劑 | 每個反應需要的體積 | 24次反應的體積 |
SEM-HRP | 50 mL | 1.2mL |
1×洗液 | 1mL | 24 mL |
終止液 | 100 mL | 2.4 mL |
底物 | 100 mL | 2.4 mL |
底物 | 100 mL | 2.4 mL |
(1) 加入100mL的標準品于所設定的孔中;
(2) 加入100mL的樣品于所設定的孔中
(3) 在每孔中加入50mL 1×SEM-HRP,輕敲微孔板邊緣混勻1分鐘;
(4) 室溫(22.5±2.5)°C避光孵育30分鐘;
(5) 洗板3次,每次應該加入250mL 1×洗液,*后一次使板盡量甩干并在吸水紙上吸干;
(6) 每孔加入100mL的TMB底物;
(7) 在室溫(22.5±2.5)°C避光孵育20分鐘后,每孔加入100mL的終止液終止反應;
(8) 在450nm或450/650nm下讀OD值 (讀數(shù)前,用吸水紙將板底部的指痕和水分擦去,避免影響讀數(shù))。
10.結果計算【惡喹酸檢測試劑盒】
(1) 分別計算標準、質(zhì)控和樣品的平均吸光度值和相對吸光度值。
相對吸光度值 (%) = (標準或樣品吸光度值/零標準吸光度值) ´ 100
(2) 以相對吸光度值為縱坐標,標準濃度為橫坐標建立標準曲線。
(3) 從標準曲線上讀取質(zhì)控和樣品的濃度值。
(4) 樣品檢測下限計算方法如下:
樣品檢測下限 = (0.025ng/g) ´ (稀釋倍數(shù))
樣品定量下限 = (0.1ng/g) ´ (稀釋倍數(shù))
例如,肉類樣品的稀釋倍數(shù)是2.0,那么肉類樣品的檢測下限是0.05ppb,定量檢測下限是0.2ppb。
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9021007 Motor, Pipettor X, DCU CNY
9013373 Fix kit, liquid handling, BR8000 CNY
9013315 Motor, handler T/L, BR3000 CNY 【惡喹酸檢測試劑盒】
QY-x1723 狗腎細胞 MDCK 狗腎臟 DMEM+10%NBCS
QY-x1724 人胚腎細胞(野生型) 293T-rex-wild-M2 人胚腎 DMEM+10%NBCS
QY-x1725 人胚腎細胞(31位點突變) 293T-rex-S 31N 人胚腎 DMEM+10%NBCS
QY-x1726 人胃腺癌細胞 MCG803
QY-x1727 人胃腺癌細胞 SCG-7901
QY-x1728 人胃癌細胞(未分化) HGC-27
QY-x1729 人結腸癌細胞 Lovo
QY-x1730 人結腸癌細胞 SW480 【惡喹酸檢測試劑盒】
QY-x1731 人肝細胞癌細胞 BEL-7402
QY-x1732 人肝細胞癌細胞 SMMC-7721
QY-x1733 人肝癌細胞 QGY- 7701
QY-x1734 人肝癌細胞 Hep-3b
QY-x1735 轉染四環(huán)素正向調(diào)控表達基因7402細胞 BEL-7402-Tet-on
QY-x1736 轉染綠色熒光蛋白和四環(huán)素正向調(diào)控表達基因7402細胞 7402-Tet-on-EGFP
QY-x1737 人胰腺癌細胞 Panc-1
QY-x1738 人胰腺癌細胞 SW1990
QY-x1739 人口腔上皮癌細胞 KB
QY-x1740 人口底癌細胞耐藥株[長春新堿(VCR)誘導高表達(p-gp)] KV
QY-x1741 人肺巨細胞癌細胞 HLAmP
QY-x1742 人肺腺癌細胞 GLC-82
QY-x1743 人肺腺癌細胞(轉染TK基因的GLC-82細胞) GLC-82-TK
QY-x1744 人鼻咽癌細胞(高分化) CNE-1
QY-x1745 人鼻咽癌細胞 SUME-a
QY-x1746 人鼻咽癌細胞 HNE-2 【惡喹酸檢測試劑盒】
QY-x1747 人慢性髓原白血病細胞 K562
QY-x1748 人組織細胞淋巴瘤細胞 U937
QY-x1749 人紅白細胞白血病細胞Erythroleukemia HEL
QY-x1750 人急性T淋巴母細胞白血病細胞 MOLT-4
QY-x1751 人急性早幼粒白血病細胞(懸。 NB4
QY-x1752 人骨肉瘤細胞 SW1353
QY-x1753 人白血病細胞 Daudi
QY-x1754 轉染了tk基因的SW038-C2細胞 SW038-C2-tk
QY-x1755 人星形膠質(zhì)細胞瘤細胞 SHC-44