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Mouse Prostaglandin E2 (PGE2)
ELISA Kit
This immunoassay kit allows for the in vitro quantitative determination of mouse
PGE2 concentrations in serum, plasma and other biological fluids.
Expiration date six months from the date of manufacture
FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES.
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INTRODUCTION
One of the prostaglandins, a group of hormone-like substances that
participate in a wide range of body functions such as the contraction and
relaxation of smooth muscle, the dilation and constriction of blood vessels,
control of blood pressure, and modulation of inflammation. Prostaglandin
E2 (PGE-2) is released by blood vessel walls in response to infection or
inflammation that acts on the brain to induce fever. The enzyme mPGES-1
is involved in the production of PGE2 and is an important "switch" for
activating the fever response.
PRINCIPLE OF THE ASSAY
The microtiter plate provided in this kit has been pre-coated with an
goat-anti-rabbit antibody. Standards or samples are then added to the
appropriate microtiter plate wells with a HRP-conjugated PGE2 and
antibody preparation specific for PGE2 and incubated. Then substrate
solutions are added to each well. The enzyme-substrate reaction is
terminated by the addition of a sulphuric acid solution and the color change
is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The
concentration of PGE2 in the samples is then determined by comparing the
O.D. of the samples to the standard curve.
DETECTION RANGE
0.32 pg/ml-80 pg/ml. The standard curve concentrations used for the
ELISA’s were 80 pg/ml, 20 pg/ml, 5 pg/ml, 1.24 pg/ml, 0.32 pg/ml.
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SPECIFICITY
This assay recognizes recombinant and natural mouse PGE2. No
significant cross-reactivity or interference was observed.
SENSITIVITY
The minimum detectable dose of mouse PGE2 is typically less than 0.2
pg/ml.
The sensitivity of this assay, or Lower Limit of Detection (LLD) was defined
as the lowest protein concentration that could be differentiated from zero.
MATERIALS PROVIDED
Reagent Quantity
Assay plate 1
Standards (S1-S5) 5 x 0.5 ml
HRP-conjugate 1 x 6 ml
Antibody 1 x 6 ml
Wash Buffer
1 x 15 ml
(20×concentrate)
Substrate A 1 x 7 ml
Substrate B 1 x 7 ml
Stop Solution 1 x 7 ml
Standard S 1 S 2 S 3 S 4 S 5
Concentration
(pg/ml)
0.32 1.24 5 20 80
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STORAGE
1. Unopened test kits should be stored at 2-8°C upon receipt and the
microtiter plate should be kept in a sealed bag. The test kit may be used
throughout the expiration date of the kit. Refer to the package label for
the expiration date.
2. Opened test kits will remain stable until the expiring date shown,
provided it is stored as prescribed above.
3. A microtiter plate reader with a bandwidth of 10 nm or less and an
optical density range of 0-3 OD or greater at 450nm wavelength is
acceptable for use in absorbance measurement.
TECHNICAL HINTS
1. Bring all reagents and plate to room temperature for at least 30 minutes
before use. Unused wells need store at 2-8℃and avoid sunlight.
2. Wash Buffer If crystals have formed in the concentrate, warm to room
temperature and mix gently until the crystals have compley dissolved.
Dilute 15 ml of Wash Buffer Concentrate into deionized or distilled water
to prepare 300 ml of Wash Buffer.
3. To avoid cross-contamination, change pipette tips between additions of
each standard level, between sample additions, and between reagent
additions. Also, use separate reservoirs for each reagent.
4. When using an automated plate washer, adding a 30 second soak
period following the addition of wash buffer, and/or rotating the plate 180
degrees between wash steps may improve assay precision.
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5. To ensure accurate results, proper adhesion of plate sealers during
incubation steps is necessary. Sealers can not be reused.
6. Substrate Solution should remain colorless until added to the plate.
Keep Substrate Solution protected from light. Substrate Solution should
change from colorless to gradations of blue.
7. Stop Solution should be added to the plate in the same order as the
Substrate Solution. The color developed in the wells will turn from blue
to yellow upon addition of the Stop Solution. Wells that are green in
color indicate that the Stop Solution has not mixed thoroughly with the
Substrate Solution.
Precaution: The Stop Solution provided with this kit is an acid solution. Wear
eye, hand, face, and clothing protection when using this material.
OTHER SUPPLIES REQUIRED
Microplate reader capable of measuring absorbance at 450 nm, with
the correction wavelength set at 540 nm or 570 nm.
Pipettes and pipette tips.
Deionized or distilled water.
Squirt bottle, manifold dispenser, or automated microplate washer.
SAMPLE COLLECTION AND STORAGE
Serum Use a serum separator tube (SST) and allow samples to clot
for 30 minutes before centrifugation for 15 minutes at 1000 x g. Remove
serum and assay immediay or aliquot and store samples at -20° C.
Avoid repeated freeze-thaw cycles.
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Plasma Collect plasma using citrate, EDTA, or heparin as an
anticoagulant. Centrifuge for 15 minutes at 1000 g within 30 minutes of
collection. Assay immediay or aliquot and store samples at -20°C.
Avoid repeated freeze-thaw cycles.
Cell Culture Supernates Remove particulates by centrifugation and
assay immediay or aliquot and store samples at -20° C. Avoid
repeated freeze-thaw cycles.
Note: Grossly hemolyzed samples are not suitable for use in this assay.
ASSAY PROCEDURE
Bring all reagents and samples to room temperature before use. It is
recommended that all samples, standards, and controls be assayed in duplicate.
1. Set a Blank well without any solution. Add 50µl of Standard or Sample
per well. Standards need test in duplicate.
2. Add 50µl of HRP-conjugate to each well (not to Blank well), then add
50µl Antibody to each well. Mix well and then incubate for 1 hour at
37°C.
3. Fill each well with Wash Buffer (about 200µl), stay for 10 seconds and
Spinning. Repeat the process for a total of three washes. Complete
removal of liquid at each step is essential to good performance. After
the last wash, remove any remaining Wash Buffer by aspirating or
decanting. Invert the plate and blot it against clean paper towels.
4. Add 50µl of Substrate A and Substrate B to each well, mix well.
Incubate for 15 minutes at 37°C. Keeping the plate away from drafts
and other temperature fluctuations in the dark.
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5. Add 50µl of Stop Solution to each well. If color change does not
appear uniform, gently tap the plate to ensure thorough mixing.
6. Determine the optical density of each well within 10 minutes, using a
microplate reader set to 450 nm.
CALCULATION OF RESULTS
Average the duplicate readings for each standard, Blank, and sample and
subtract the optical density of Blank. Create a standard curve by reducing
the data using computer software capable of generating a four parameter
logistic (4-PL) curve-fit. As an alternative, construct a standard curve by
plotting the mean absorbance for each standard on the y-axis against the
concentration on the x-axis and draw a best fit curve through the points on
the graph. The data may be linearized by plotting the log of the PGE2
concentrations versus the log of the O.D. and the best fit line can be
determined by regression analysis. This procedure will produce an
adequate but less precise fit of the data. If samples have been diluted, the
concentration read from the standard curve must be multiplied by the
dilution factor.
LIMITATIONS OF THE PROCEDURE
The kit should not be used beyond the expiration date on the kit label.
Do not mix or substitute reagents with those from other lots or sources.
It is important that the Calibrator Diluent selected for the standard curve
be consistent with the samples being assayed.
If samples generate values higher than the highest standard, dilute the
samples with the appropriate Calibrator Diluent and repeat the assay.
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Any variation in Standard Diluent, operator, pipetting technique,
washing technique, incubation time or temperature, and kit age can
cause variation in binding.
This assay is designed to eliminate interference by soluble receptors,
binding proteins, and other factors present in biological samples. Until
all factors have been tested in the Quantikine Immunoassay, the
possibility of interference cannot be excluded.
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小 小小 小鼠前列腺素 鼠前列腺素 鼠前列腺素 鼠前列腺素 E2(PGE2)快速檢測(cè)試劑盒 快速檢測(cè)試劑盒 快速檢測(cè)試劑盒 快速檢測(cè)試劑盒
使用說(shuō)明書(shū) 使用說(shuō)明書(shū) 使用說(shuō)明書(shū) 使用說(shuō)明書(shū)
本試劑盒僅供研究使用 本試劑盒僅供研究使用 本試劑盒僅供研究使用 本試劑盒僅供研究使用
產(chǎn)品編號(hào) 產(chǎn)品編號(hào) 產(chǎn)品編號(hào) 產(chǎn)品編號(hào):CSB-E07966m
檢測(cè)范圍 檢測(cè)范圍 檢測(cè)范圍 檢測(cè)范圍: :: :0.32 pg /ml -80 pg /ml
zui低檢測(cè)限 zui低檢測(cè)限 zui低檢測(cè)限 zui低檢測(cè)限: :: :0.2 pg/ml
特異性 特異性 特異性 特異性: :: :本試劑盒可同時(shí)檢測(cè)天然或重組的 PGE2,且與其他相關(guān)蛋白基
本無(wú)交叉反應(yīng)。
有效期 有效期 有效期 有效期:6 個(gè)月(2-8℃避光保存)
預(yù)期應(yīng)用 預(yù)期應(yīng)用 預(yù)期應(yīng)用 預(yù)期應(yīng)用: :: : ELISA法定量測(cè)定小鼠血清,血漿及其它相關(guān)生物液體中PGE2
含量。
說(shuō)明 說(shuō)明 說(shuō)明 說(shuō)明
1. 濃洗滌液低溫保存會(huì)有鹽析出,稀釋時(shí)可在水浴中加溫助溶。
2. 剛開(kāi)啟的酶聯(lián)板孔中可能會(huì)含有少許水樣物質(zhì),此為正?,F(xiàn)象,不會(huì)對(duì)實(shí)
驗(yàn)結(jié)果造成任何影響。
實(shí)驗(yàn)原理 實(shí)驗(yàn)原理 實(shí)驗(yàn)原理 實(shí)驗(yàn)原理
采用競(jìng)爭(zhēng)酶聯(lián)免疫法檢測(cè) PGE2 含量。首先用羊抗兔包被微孔板,制備
成固相二抗,然后加入待測(cè)標(biāo)本、辣根過(guò)氧化物酶標(biāo)記 PGE2 以及抗 PGE2
抗體,使之形成包被二抗-抗 PGE2 抗體- PGE2(HRP)復(fù)合物。經(jīng)顯色后
在酶標(biāo)儀測(cè)定吸光值(OD值),通過(guò)計(jì)算機(jī)或作圖擬合濃度-吸光度曲線,反
算出待測(cè)標(biāo)本中 PGE2含量。
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試劑盒組成及試劑配制 試劑盒組成及試劑配制 試劑盒組成及試劑配制 試劑盒組成及試劑配制
1. 酶聯(lián)板 酶聯(lián)板 酶聯(lián)板 酶聯(lián)板(Assay plate ): 一塊 (96孔)。
2. 標(biāo)準(zhǔn)品 標(biāo)準(zhǔn)品 標(biāo)準(zhǔn)品 標(biāo)準(zhǔn)品 (Standard): 5×0.5ml/瓶。
Standard 1 Standard 2 Standard 3 Standard 4 Standard 5
0.32pg/ml 1.24pg/ml 5 pg/ml 20 pg/ml 80 pg/ml
3. 酶結(jié)合物 酶結(jié)合物 酶結(jié)合物 酶結(jié)合物( (( (HRP-conjugate) )) ): 1×6ml/瓶。
4. 抗體 抗體 抗體 抗體( (( (Antibody) )) ) 1×6ml/瓶。
5. 顯色劑 顯色劑 顯色劑 顯色劑 A ( (( (Substrate A): 1×7ml/瓶。
6. 顯色劑 顯色劑 顯色劑 顯色劑 B ( (( (Substrate B): 1×7ml/瓶。
7. 濃洗滌液 濃洗滌液 濃洗滌液 濃洗滌液( (( (Wash Buffer) )) ):1×15ml/瓶,使用時(shí)每瓶用蒸餾水稀釋 20 倍。
8. 終止液 終止液 終止液 終止液( (( (Stop Solution) )) ): 1×7ml/瓶。
需要而未提供的試劑和器材 需要而未提供的試劑和器材 需要而未提供的試劑和器材 需要而未提供的試劑和器材
1. 標(biāo)準(zhǔn)規(guī)格酶標(biāo)儀
2. 高速離心機(jī)
3. 電熱恒溫培養(yǎng)箱
4. 干凈的試管和 Eppendof 管
5. 系列可調(diào)節(jié)移液器及吸頭,一次檢測(cè)樣品較多時(shí),用多通道移液器
6. 蒸餾水,容量瓶等
標(biāo)本的采集及保存 標(biāo)本的采集及保存 標(biāo)本的采集及保存 標(biāo)本的采集及保存
1. 血清:全血標(biāo)本請(qǐng)于室溫放置 2 小時(shí)或 4℃過(guò)夜后于 1000 x g離心 20 分
鐘,取上清即可檢測(cè),或?qū)?biāo)本放于-20℃或-80℃保存,但應(yīng)避免反復(fù)凍
融。
2. 血漿:可用 EDTA 或肝素作為抗凝劑,標(biāo)本采集后 30 分鐘內(nèi)于 2 - 8° C
1000 x g離心 15 分鐘,或?qū)?biāo)本放于-20℃或-80℃保存,但應(yīng)避免反復(fù)
凍融。
3. 細(xì)胞培養(yǎng)物上清:離心后取上清,上清立即用于實(shí)驗(yàn),或分裝后于-20°C
保存。避免反復(fù)凍融。
注 注注 注: :: :以上標(biāo)本置 以上標(biāo)本置 以上標(biāo)本置 以上標(biāo)本置 4℃ ℃℃ ℃保存應(yīng)小于 保存應(yīng)小于 保存應(yīng)小于 保存應(yīng)小于 1 周 周周 周, ,, ,-20℃ ℃℃ ℃或 或或 或-80℃ ℃℃ ℃均應(yīng)密封保存 均應(yīng)密封保存 均應(yīng)密封保存 均應(yīng)密封保存, ,, ,-20℃ ℃℃ ℃不應(yīng)超過(guò) 不應(yīng)超過(guò) 不應(yīng)超過(guò) 不應(yīng)超過(guò) 1 個(gè) 個(gè)個(gè) 個(gè)
月 月月 月, ,, ,-80℃ ℃℃ ℃不應(yīng)超過(guò) 不應(yīng)超過(guò) 不應(yīng)超過(guò) 不應(yīng)超過(guò) 2 個(gè)月 個(gè)月 個(gè)月 個(gè)月; ;; ;標(biāo)本溶血會(huì)影響zui后檢測(cè)結(jié)果 標(biāo)本溶血會(huì)影響zui后檢測(cè)結(jié)果 標(biāo)本溶血會(huì)影響zui后檢測(cè)結(jié)果 標(biāo)本溶血會(huì)影響zui后檢測(cè)結(jié)果, ,, ,因此溶血標(biāo)本不宜進(jìn)行 因此溶血標(biāo)本不宜進(jìn)行 因此溶血標(biāo)本不宜進(jìn)行 因此溶血標(biāo)本不宜進(jìn)行檢 檢檢 檢
測(cè) 測(cè)測(cè) 測(cè)。 。。 。
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操作步驟 操作步驟 操作步驟 操作步驟
1. 將各種試劑至室溫〔18-25℃〕平衡半小時(shí),取濃縮洗滌液,根據(jù)當(dāng)批檢
測(cè)數(shù)量,用蒸餾水上 1:20 稀釋?zhuān)靹蚝髠溆谩?
2. 將酶標(biāo)板取出,設(shè)一個(gè)空白對(duì)照孔、不加任何液體;每個(gè)標(biāo)準(zhǔn)點(diǎn)依次各設(shè)
兩孔,每孔加入相應(yīng)標(biāo)準(zhǔn)品 50ul;其余每個(gè)檢測(cè)孔直接加待測(cè)標(biāo)本 50ul。
3. 每孔加入酶結(jié)合物 50ul(空白對(duì)照孔除外),再按同樣的順序加入抗體
50ul,充分混勻,貼上不干膠封片,置 37℃溫育 1 小時(shí)。
4. 手工洗板,棄去孔內(nèi)液體。洗滌液注滿各孔,靜置 10 秒甩干,重復(fù)三次
后拍干;洗板機(jī)洗板,選擇洗滌三次程序,洗板后拍干。
5. 每孔加顯色劑 A 液 50µl,顯色劑 B 液 50µl,振蕩混勻后,37℃避光顯色
15 分鐘,每孔加終止液 50µl。
6. 用酶標(biāo)儀讀數(shù),取波長(zhǎng) 450nm,先用空白孔調(diào)零點(diǎn),然后測(cè)定各孔 OD
值。
數(shù)據(jù)處理 數(shù)據(jù)處理 數(shù)據(jù)處理 數(shù)據(jù)處理
1. 手工作圖:用雙對(duì)數(shù)坐標(biāo)紙,以標(biāo)準(zhǔn)品濃度為橫軸,以對(duì)應(yīng)的 0D值為縱
軸,畫(huà)出平滑曲線或直線,在曲線上按照待測(cè)血清 OD值找到對(duì)應(yīng)的濃度
值。
2. 計(jì)算機(jī):使用線性擬合功能,應(yīng)將標(biāo)準(zhǔn)品 S1-S5 的濃度取對(duì)數(shù)(Log(濃
度))作為 X,將對(duì)應(yīng)的 OD值減去空白對(duì)照孔 OD值后取對(duì)數(shù)(Log(OD
值-NSB))作為 Y,進(jìn)行線性擬合。再?gòu)臄M合線上計(jì)算出待測(cè)血清濃度。
注意事項(xiàng) 注意事項(xiàng) 注意事項(xiàng) 注意事項(xiàng)
1. 從冷藏環(huán)境中取出的試劑盒內(nèi)全部瓶裝試劑及所需預(yù)包被板條應(yīng)置室溫
(18-25℃)平衡 30 分鐘后方可使用,余者應(yīng)及時(shí)封好口,放回 2-8℃中避
光保存,以備后用。
2. 使用前試劑應(yīng)搖勻。
3. 結(jié)果判斷須在反應(yīng)終止后 10 分鐘內(nèi)完成。
4. 不同批號(hào)的試劑不可混用。
5. 加樣時(shí)應(yīng)注意避免所用各試劑及樣品之間的交又污染。
6. 操作時(shí),試劑盒內(nèi)每種試劑各使用一個(gè)吸頭,每一種標(biāo)準(zhǔn)品使用一個(gè)吸頭,
每一個(gè)樣品各使用一個(gè)吸頭,吸頭一次性使用。
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