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Rat Testoterone( ( ( (T) ) ) )ELISA Kit
Catalog No. CSB-E05100r
(96T)
This immunoassay kit allows for the in vitro quantitative determination of rat
testoterone 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.
http://www.cusabio.com/ http://www.cusabio.cn/
: cusabio@cusabio.com cusabio@cusabio.cn
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INTRODUCTION
Testosterone is a steroid hormone from the androgen group. In mammals,
testosterone is primarily secreted in the testes of males and the ovaries of females,
although small amounts are also secreted by the adrenal glands. It is the principal
male sex hormone and an anabolic steroid.
In both men and women, testosterone plays a key role in health and well-being as
well as in sexual functioning. Examples include enhanced libido, increased energy,
increased production of red blood cells and protection against osteoporosis. On
average, an adult human male body produces about forty to sixty times more
testosterone than an adult female body, but females are, from a behavioral
perspective (rather than from an anatomical or biological perspective), more
sensitive to the hormone. However the overall ranges for male and female are very
wide, such that the ranges actually overlap at the low end and high end
respectively.
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
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microtiter plate wells with a HRP-conjugated testoterone and antibody preparation
specific for testoterone 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 testoterone in the samples is
then determined by comparing the O.D. of the samples to the standard curve.
DETECTION RANGE
0.1 ng/ml-25.6 ng/ml. The standard curve concentrations used for the ELISA’s
were 25.6 ng/ml, 6.4 ng/ml, 1.6 ng/ml, 0.39 ng/ml, 0.1 ng/ml.
SPECIFICITY
This assay recognizes recombinant and natural rat testoterone. No significant
cross-reactivity or interference was observed.
SENSITIVITY
The minimum detectable dose of rat testoterone is typically less than 0.06 ng/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.
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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 x7 ml
Standard Standard 1 Standard 2 Standard 3 Standard 4 Standard 5
Concentration
(ng/ml)
0.1 0.39 1.6 6.4 25.6
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.
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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.
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.
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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.
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 testoterone 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.
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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.
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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大鼠睪酮 大鼠睪酮 大鼠睪酮 大鼠睪酮(T) (T) (T) (T)酶聯(lián)免疫 酶聯(lián)免疫 酶聯(lián)免疫 酶聯(lián)免疫試劑盒 試劑盒 試劑盒 試劑盒
使用說明書 使用說明書 使用說明書 使用說明書
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 產(chǎn)品編號 產(chǎn)品編號 產(chǎn)品編號:CSB-E05100r
檢測范圍 檢測范圍 檢測范圍 檢測范圍: :: :0.1 ng /ml -25.6 ng /ml
zui低檢測限 zui低檢測限 zui低檢測限 zui低檢測限: :: :0.06 ng/ml
特異性 特異性 特異性 特異性: :: :本試劑盒可同時檢測天然或重組的睪酮,且與其他相關(guān)蛋白基本
無交叉反應。
有效期 有效期 有效期 有效期:6 個月(2-8℃避光保存)
預期應用 預期應用 預期應用 預期應用: :: :ELISA 法定量測定大鼠血清,血漿及其它相關(guān)生物液體中睪酮
含量。
說明 說明 說明 說明
1. 濃洗滌液低溫保存會有鹽析出,稀釋時可在水浴中加溫助溶。
2. 剛開啟的酶聯(lián)板孔中可能會含有少許水樣物質(zhì),此為正?,F(xiàn)象,不會對實
驗結(jié)果造成任何影響。
實驗原理 實驗原理 實驗原理 實驗原理
采用酶聯(lián)免疫競爭法檢測睪酮含量。首先用羊抗兔包被微孔板,制備成
固相二抗,然后加入待測標本、辣根過氧化物酶標記睪酮以及抗睪酮抗體,
使之形成包被二抗-抗睪酮抗體- 睪酮(HRP)復合物,標記睪酮的結(jié)合量與
標本中的睪酮量成反比。經(jīng)顯色后在酶標儀測定吸光值(OD 值),通過計算
機或作圖擬合濃度-吸光度曲線,反算出待測標本中睪酮含量。
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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 酶酶 酶聯(lián) 聯(lián)聯(lián) 聯(lián)板 板板 板(Assay plate ): 一塊 (96 孔)。
2. 標準品 標準品 標準品 標準品 (Standard): 5×0.5ml/瓶。
Standard 1 Standard 2 Standard 3 Standard 4 Standard 5
0.1 ng/ml 0.39 ng/ml 1.6 ng/ml 6.4 ng/ml 25.6 ng/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 需要而未提供的試 需要而未提供的試 需要而未提供的試劑和器材 劑和器材 劑和器材 劑和器材
1. 標準規(guī)格酶標儀
2. 高速離心機
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,一次檢測樣品較多時,用多通道移液器
6. 蒸餾水,容量瓶等
標本的采集及保存 標本的采集及保存 標本的采集及保存 標本的采集及保存
1. 血清:全血標本請于室溫放置 2 小時或 4℃過夜后于 1000 x g離心 20 分
鐘,取上清即可檢測,或?qū)吮痉庞?20℃或-80℃保存,但應避免反復凍
融。
2. 血漿:可用 EDTA 或肝素作為抗凝劑,標本采集后 30 分鐘內(nèi)于 2 - 8° C
1000 x g 離心 15 分鐘,或?qū)吮痉庞?20℃或-80℃保存,但應避免反復
凍融。
注 注注 注: :: :以上標 以上標 以上標 以上標本置 本置 本置 本置 4℃ ℃℃ ℃保存應小于 保存應小于 保存應小于 保存應小于 1 周 周周 周, ,, ,-20℃ ℃℃ ℃或 或或 或-80℃ ℃℃ ℃均應密封保存 均應密封保存 均應密封保存 均應密封保存, ,, ,-20℃ ℃℃ ℃不應超過 不應超過 不應超過 不應超過 1 個 個個 個
月 月月 月, ,, ,-80℃ ℃℃ ℃不應超過 不應超過 不應超過 不應超過 2 個月 個月 個月 個月; ;; ;標本溶血會影響zui后檢測結(jié)果 標本溶血會影響zui后檢測結(jié)果 標本溶血會影響zui后檢測結(jié)果 標本溶血會影響zui后檢測結(jié)果, ,, ,因此溶血標本不宜進行 因此溶血標本不宜進行 因此溶血標本不宜進行 因此溶血標本不宜進行檢 檢檢 檢
測 測測 測。 。。 。
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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,取濃縮洗滌液,根據(jù)當批檢
測數(shù)量,用蒸餾水上 1:20 稀釋,混勻后備用。
2. 將酶標板取出,設(shè)一個空白對照孔、不加任何液體;每個標準點依次各設(shè)
兩孔,每孔加入相應標準品 50ul;其余每個檢測孔直接加待測標本 50ul。
3. 每孔加入酶結(jié)合物 50ul(空白對照孔除外),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。
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,重復三次
后拍干;洗板機洗板,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. 用酶標儀讀數(shù),取波長 450nm,先用空白孔調(diào)零點,然后測定各孔 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:用雙對數(shù)坐標紙,以標準品濃度為橫軸,以對應的 0D值為縱
軸,畫出平滑曲線或直線,在曲線上按照待測血清 OD值找到對應的濃度
值。
2. 計算機:使用線性擬合功能,應將標準品 S1-S5 的濃度取對數(shù) (Log(濃度))
作為 X,將對應的 OD 值減去空白對照孔 OD 值后取對數(shù)(Log(OD 值
-NSB))作為 Y,進行線性擬合。再從擬合線上計算出待測血清濃度。
注意事項 注意事項 注意事項 注意事項
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包被板條應置室溫
(18-25℃)平衡 30 分鐘后方可使用,余者應及時封好口,放回 2-8℃中避光
保存,以備后用。
2. 使用前試劑應搖勻。
3. 結(jié)果判斷須在反應終止后 10 分鐘內(nèi)完成。
4. 不同批號的試劑不可混用。
5. 加樣時應注意避免所用各試劑及樣品之間的交又污染。
6. 操作時,試劑盒內(nèi)每種試劑各使用一個吸頭,每一種標準品使用一個吸頭,
每一個樣品各使用一個吸頭,吸頭一次性使用。
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