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大鼠雌二醇 ELISA試劑盒說(shuō)明書(shū)
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Rat Estradiol ELISA Kit
Catalog No. CSB-E05110r
(96T)
This immunoassay kit allows for the in vitro quantitative determination of rat Estradiol
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.
CUSABIO BIOTECH CO., LTD.
/ /
: cusabio@ cusabio@
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INTRODUCTION
Estradiol (E2 or 17β-estradiol) (also oestradiol) is a sex hormone. During
the reproductive years, most estradiol in women is produced by the
granulosa cells of the ovaries by the aromatization of androstenedione
(produced in the theca folliculi cells) to estrone, followed by conversion
of estrone to estradiol by 17β-hydroxysteroid reductase. Smaller amounts
of estradiol are also produced by the adrenal cortex, and (in men), by the
testes. Estradiol is not only produced in the gonads: in both sexes,
precursor hormones, specifically testosterone, are converted by
aromatization to estradiol. In particular, fat cells are active to convert
precursors to estradiol, and will continue to do so even after menopause.
Estradiol is also produced in the brain and in arterial walls. Estradiol
enters cells freely and interacts with a cytoplasmic target cell receptor.
When the estrogen receptor has bound its ligand it can enter the nucleus
of the target cell, and regulate gene transcription which leads to
formation of messenger RNA. The mRNA interacts with ribosomes to
produce specific proteins that express the effect of estradiol upon the
target cell. Estradiol binds well to both estrogen receptors, ERα and ERβ,
in contrast to certain other estrogens, notably medications that
preferentially act on one of these receptors. These medications are called
selective estrogen receptor modulators, or SERMs.
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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 Estradiol and
antibody preparation specific for Estradiol and incubated. Then a TMB
(3,3',5,5' tetramethyl-benzidine) substrate solution is 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 Estradiol in the samples is then determined by
comparing the O.D. of the samples to the standard curve.
DETECTION RANGE
20 pg/ml-1000 pg/ml. The standard curve concentrations used for the
ELISA’s were 1000 pg/ml, 500 pg/ml, 200 pg/ml, 60 pg/ml, 20 pg/ml.
SPECIFICITY
This assay recognizes recombinant and natural rat Estradiol. No
significant cross-reactivity or interference was observed.
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SENSITIVITY
The minimum detectable dose of rat Estradiol is typically less than 5
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 (96T)
Standards (S1-S5) 5
HRP-conjugate 1 x 6ml
Antibody 1 x 6 ml
1 x 15 ml
Wash Buffer
(20×concentrate)
Substrate A 1 x 7ml
Substrate B 1 x 7 ml
Stop Solution 1 x 7 ml
Standard Standard 1 Standard 2 Standard 3 Standard 4 Standard 5
Concentration
20pg/ml 60pg/ml 200pg/ml 500pg/ml 1000pg/ml
(pg/ml)
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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 with desiccants to
minimize exposure to damp air. 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.
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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.
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.
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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.
Plasma Collect plasma using citrate, EDTA, or heparin as an
anticoagulant. Centrifuge for 15 minutes at 1000 x g within 30
minutes of collection. 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.
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1. Set a Blank well without any solution. Add 50l of Standard or
Sample per well. Standard need test in duplicate.
2. Add 50l of HRP-conjugate to each well (not to Blank well), then
50l antibody to each well. Mix well and then incubate for 2 hours at
37°C.
3. Fill each well with Wash Buffer (about 200l), 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 50l 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.
5. Add 50l 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.
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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
Estradiol 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.
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If samples generate values higher than the highest standard, dilute the
samples with the appropriate Calibrator Diluent and repeat the assay.
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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大鼠大鼠雌二醇雌二醇酶聯(lián)免疫酶聯(lián)免疫試劑盒試劑盒
大鼠大鼠雌二醇雌二醇酶聯(lián)免疫酶聯(lián)免疫試劑盒試劑盒
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):CSB-E05110r
產(chǎn)品編號(hào)產(chǎn)品編號(hào)
檢測(cè)范圍檢測(cè)范圍::20 pg/ml -1000 pg/ml
檢測(cè)范圍檢測(cè)范圍::
特異性特異性::本試劑盒可同時(shí)檢測(cè)天然或重組的雌二醇,且與其他相關(guān)物質(zhì)基本
特異性特異性::
無(wú)交叉反應(yīng)。
有效期有效期:6 個(gè)月 (2-8℃避光保存)
有效期有效期
預(yù)期應(yīng)用預(yù)期應(yīng)用::ELISA 法定量測(cè)定大鼠血清,血漿及其它相關(guān)生物液體中雌二醇
預(yù)期應(yīng)用預(yù)期應(yīng)用::
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),此為正常現(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
采用酶聯(lián)免疫競(jìng)爭(zhēng)法檢測(cè)雌二醇含量。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)記的雌二醇以及抗雌二醇抗
體,使之形成包被二抗-抗雌二醇抗體-雌二醇 (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)本中雌二醇含量。
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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)酶聯(lián)板板(Assay plate ): 一塊(96 孔)。
酶酶聯(lián)聯(lián)板板
2. 標(biāo)準(zhǔn)品標(biāo)準(zhǔn)品 (Standard): 5 瓶。
標(biāo)準(zhǔn)品標(biāo)準(zhǔn)品
Standard 1 Standard 2 Standard 3 Standard 4 Standard 5
20pg/ml 60pg/ml 200pg/ml 500pg/ml 1000pg/ml
3. 酶結(jié)合物酶結(jié)合物 ((HRP-conjugate):) 1×6ml/瓶。
酶結(jié)合物酶結(jié)合物 (( ))
4. 抗體抗體 ((Antibody ):) 1×6ml/瓶。
抗體抗體 (( ))
5. 顯色劑顯色劑A ((Substrate A): 1×7ml/瓶。
顯色劑顯色劑 ((
6. 顯色劑顯色劑B ((Substrate B): 1×7ml/瓶。
顯色劑顯色劑 ((
7. 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。
濃洗滌液濃洗滌液 (( ))
8. 終止液終止液 ((Stop Solution):) 1×7ml/瓶。
終止液終止液 (( ))
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。
注:注: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 1 周,周,-20℃或℃或-80℃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) 1 個(gè)月個(gè)月,,
注注::以上標(biāo)本置以上標(biāo)本置 ℃℃保存應(yīng)小于保存應(yīng)小于 周周,, ℃℃或或 ℃℃均應(yīng)密封保存均應(yīng)密封保存,, ℃℃不應(yīng)超過(guò)不應(yīng)超過(guò) 個(gè)月個(gè)月,,
-80℃不應(yīng)超過(guò)℃不應(yīng)超過(guò)2 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,因此溶血標(biāo)本不宜進(jìn)行此項(xiàng)檢測(cè),因此溶血標(biāo)本不宜進(jìn)行此項(xiàng)檢測(cè)。。
℃℃不應(yīng)超過(guò)不應(yīng)超過(guò) 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,,因此溶血標(biāo)本不宜進(jìn)行此項(xiàng)檢測(cè)因此溶血標(biāo)本不宜進(jìn)行此項(xiàng)檢測(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,混勻后備用。
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),再按同樣順序每孔加入抗體
50ul,充分混勻,貼上不干膠封片,置37℃溫育2 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 50 μl,顯色劑B 液 50 μl,振蕩混勻后,37℃避光顯色
15 分鐘,每孔加終止液50 μl。
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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Notes :
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17
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