Rat Follicle-stimulating hormone (FSH)
Contents
1. 20 minutes at 2000 3000 rpm collect supernatant When the composition of cells is detected dilute cell suspension with PBS pH 7 2 7 4 work with a cell concentration of 1 million cells ml repeated freeze thaw cycles damage cells and release of intracellular components centrifuge for 20 minutes at 2000 3000 rpm Collect supernatant If precipitation appears centrifuge again Tissue samples After cutting samples check the weight add PBS PH7 2 7 4 Rapidly freeze with liquid nitrogen keep samples at 2 8 C after melting add PBS PH7 4 Homogenize by hand or Grinders centrifuge for 20 minutes at the speed of 2000 3000 rpm Collect supernatant Storage Serum plasma and cell culture fluid samples must be used within 7 days May be stored at 2 8 C otherwise samples must stored at 20 C 2months or 80 C 6months to avoid loss of bioactivity and contamination Avoid freeze thaw cycles When performing the assay slowly bring samples to room temperature DO NOT USE HEAT TREATED SPECIMENS Materials Required but not Supplied 80 O INN oe iE Standard micro plate reader 450nm Precision pipettes and Disposable pipette tips 37 C incubator Distilled or de ionized water Data analysis and graphing software Tubes to prepare standard or sample dilutions Adjustable 10ml 100ml pipettes for reagent preparation 100 ml and 1 liter graduated cylinders Absorbent paper Warnings and Precautions l The kit contains mat2. pat dry 4 Add 50ul of chromogen solution A to each well and then add 50ul of chromogen solution B to each well Gently shake and incubate for 10 minutes at 37L away from light 5 Stop Add Stop Solution 50ul into each well to stop the reaction the blue changes into yellow immediately 6 Final measurement Take blank well as zero measure the optical density OD at 450 nm wavelength which should be carried out within 15 minutes after adding the stop solution 7 According to standards concentration and the corresponding OD values calculate out the standard curve linear regression equation and then apply the OD values of the sample on the regression equation to calculate the corresponding sample s concentration It is acceptable to use a variety of software to make calculations 4 6 FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES Summary Procedures Prepare reagents samples and standard Add prepared sample and standard and HRP Conjugate Reagent incubate for 60 minutes at 37 l Wash plate five times and add Chromogen Solution A and B incubate for 15 minutes at 37 Add stop solution Measure within 15minutes Calculation Determining the Results l 4 This standard curve is used to determine the amount in an unknown sample The standard curve is generated by plotting the average O D 450 nm obtained for each of the six standard concentrations on the vertica
3. Rat Follicle stimulating hormone FSH ELISA Kit instruction MBS810666 Intended use The kit uses a double antibody sandwich enzyme linked immunosorbent assay ELISA to assay the level of Follicle stimulating hormone FSH in samples Add standard test sample and HRP labeled Follicle stimulating hormone FSH antibodies to enzyme wells which is Pre coated with Follicle stimulating hormone FSH antibody then carry out incubation and washing to remove the uncombined enzyme Then add Chromogen Solution A B the color of the liquid will changes into the blue And at the effect of acid the color finally becomes yellow The depth of color and the concentration of the Follicle stimulating hormone FSH sample were positively correlated Performance Kit l 2 z Assay range 3 12mIU ml 100mIU ml Assay method The kit uses a double antibody sandwich enzyme linked immunosorbent assay ELISA Characteristics For quantitative concentration determination in serum plasma cell culture supernatant tissue homogenate and any other biological fluid Accuracy Standard linear regression correlation coefficient R with the expected value of the concentration greater than or equal to 0 9900 Specificity Cannot be used with other structural analogues in order to avoid cross reaction Repeatability The plate coefficient of variation is less than 15 Plate type Pre coated 8 12 strips 96 wells Reliability Can be performed within two ho
4. content out over 3 6 FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES the sink and tap it on the absorbent papers to dry Add at least 0 35ml washing solution 1x into each well and soak the plate for 1 2 minutes Repeat this process 5 times Automatic washing method If there is an automatic washing machine it should only be used in the test when you are quite familiar with its function and performance Operation Steps 1 The quantity of the strips depends on the quantity to be tested samples and the standards It is suggested to duplicate each standard and blank well Every sample should be made according to your required quantity and try to use the duplicated wells for samples as well 2 Set blank wells standard wells and test sample wells respectively 1 Blank wells do not add samples and horseradish peroxidase HRP other operations are the same 2 Standard wells Add standard 50ul to Standard wells 3 Test sample wells Add 40ul of sample diluent and then add 10ul of undiluted testing sample sample final dilution factor is 5 4 Add 50ul of horseradish peroxidase HRP into each well except blank well Then seal the plate and gently shake then incubate 60 minutes at 37 D 3 Discard Liquid excess drying fill each well with diluted washing liquid mix and shake for 30 seconds discard the washing liquid and tap the plate into absorbent papers to dry Repeat five times and then
5. erial and a small amount of sodium azide Avoid contact with eyes skin and mucous membrane In case of contact wash affected area with plenty of water Bring kit components out of the fridge for at least 30minutes before its use If the Enzyme coated plates are not used immediately after being opened the remaining plates should be stored in a sealed bag The concentrated washing liquid which was removed from the refrigerator may contain some crystals This is a normal phenomenon Please completely dissolve before used The operation should be carried out in strict accordance with the instructions Test results must be based on the readings of the Enzyme reader 2 6 FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES 10 11 12 13 14 For each step add sample by using a pipette which should be calibrated frequently in order to avoid unnecessary experimental errors In order to avoid cross contamination it is forbidden to re use the tips and seal plate membrane with your hands All liquid components should be well mixed before its use Samples should be collected in pyrogen endotoxin free tubes Samples should be frozen if not analyzed shortly after collection Avoid multiple freeze thaw cycles of the samples Thaw completely and mix well prior to analysis When possible avoid use of badly hemolyzed or lipemic sera If large amounts of particulates are present centrifuge or filter prior to analy
6. l Y axis versus the corresponding concentration on the horizontal X axis First calculate the mean O D value for each standard and sample All O D values are subtracted by the mean value of the zero standard before result interpretation Construct the standard curve using graph paper or statistical software To determine the amount in each sample first locate the O D value on the Y axis and extend a horizontal line to the standard curve At the point of intersection draw a vertical line to the X axis and read the corresponding concentration Any variation in the operator pipetting and washing technique incubation time or temperature and kit age can cause a variation in the result Each user should obtain their own standard curve 5 6 FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES 3 0 20 Te 1 0 0 5 standards concentration X Package size 96 determinations Storage 2 8 Validity Six months PLEASE CAREFULLY READ THIS INSTRUCTION MANUAL BEFORE USE TO BE USED ONLY FOR RESEARCH PURPOSES NOT TO BE USED FOR MEDICAL DIAGNOSIS FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES 6 6
7. sis It is recommended that all standards controls and samples be run in duplicate The idle reagents shall be put up or covered Do not use reagents with different batches and use them before expired date Read absorbances within 2 hours of assay completion The substrate B is light sensitive Avoid prolonged exposure to light Also avoid contact between Stabilized Chromogen and metal All samples washing buffer and each kind of waste should be processed according to infective material procedures Materials Supplied REAGENTS store at 2 80 1x96WELLS RECONSTITUTION 96 wells miorou 8 1 2strips Ready to use Standard 100mIU ml 0 6ml Dilute according to instructions Standard diluent 6 0ml Ready to use Sample diluent 6 0ml Ready to use HRP Conjugate reagent 10 0ml Ready to use 20X Wash solution 25ml Dilute according to instructions Chromogen Solution A 6 0ml Ready to use Chromogen Solution B 6 0ml Ready to use Stop Solution 6 0ml Ready to use Microplate Sealers 2 Ready to use User manual 1 Ready to use Sealed bags 1 Ready to use Note Dilute the Standard with Standard diluent as follows 100 50 25 12 5 6 25 0mIU ml Reagent Preparation 20 x dilution of washing buffer distilled water diluted by 1 20 or 1 copy of the 20 x washing buffer plus 19 copies of the distilled water Washing Method Manually washing method Empty the plate by inverting it and shaking the
8. urs Contrary to traditional Elisa methods only a single incubation and wash step is required resulting in fewer handling steps which reduce errors and deliver more consistent results Thorough and regular tests of the system guarantee a great intra and inter assay reliability and ensure a low coefficient of variation Sample Collection and Storage Samples that contain NaN3 cannot be detected because NaN3 inhibits HRP Serum During the operation use non pyrogenic and endotoxin in vitro to avoid any cell stimulation collect blood centrifuge 3000 rpm for 10 minutes Carefully separate the serum and red blood cells as quickly as possible If precipitation appears centrifuge again Plasma Use suited EDTA citrate or heparin as an anticoagulant mix 20 minutes centrifuge 30minutes at the speed of 3000 rpm collect supernatant If precipitation appears centrifuge again 1 6 FOR RESEARCH USE ONLY NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES Homogenate Homogenize with saline buffer and centrifuge for 10 minutes at the speed of 3000 rpm then get supernatant for detection Urine Collect with sterile container centrifuge for 20 minutes at 2000 3000 rpm Collect supernatant If precipitation appears centrifuge again Use this description to also process hydrothorax and cerebrospinal fluid Cell culture supernatant When secretory components want to be detected collect culture medium with a sterile container centrifuge for
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