By purchasing this product, which contains fluorescent-labeled microsphere beads authorized by Luminex Corporation ("Luminex"), you, the customer, acquire the right under Luminex’s patent rights, if any, to use this product or any portion of this product, including without limitation the microsphere beads contained herein, only with Luminex’s laser based fluorescent analytical test instrumentation marketed under the name of Luminex*.

*Luminex instrumentation refers to Luminex®100, Luminex 200 and other Luminex instruments from MiraiBio® (MasterPlex CT™), ACS® (STarStation™), Bio-Rad Laboratories, Inc.® (Bio-Plex™) and Qiagen® (LiquiChip™). For technical assistance on running LINCOplex Kits, contact our technical service department Toll Free U.S. at 866-441-8400 or 636-441-8400 or email us at


This is a multiplex assay kit manufactured by LINCO Research, Inc. is to be used for the simultaneous quantificationtative measurement of the following six human Pituitary Hormones in any combination: FSH, LH, Prolactin, GH, TSH, and ACTH. This kit may be used for the analysis of all of the above Pituitary Hormones in serum, plasma, plasma, tissue/cell lysate and culture supernatant samples from normal subjects and patients with various endocrine disorders (1-3).

This kit is for research purposes only.


A. Antibody-Immobilized Beads (20X concentrated): Dilution is required before the assay. The following beads are available for your customized kits:

#02-Human FSH

#13-Human LH

#24-Human TSH


#43-Human GH

#48-Human ACTH

Quantity: 200µl antibody immobilized beads/bottle

B. Human Pituitary Standard Cocktail

1 vial containing Human Pituitary standard cocktail, lyophilized

Quantity: 1 vial

C. Human Pituitary Quality Controls

Control I – 1 vial containing mixed Pituitary cocktail, lyophilized

Control II – 1 vial containing mixed Pituitary cocktail, lyophilized

Quantity: 1 vial/each Control

D. Serum Matrix, lyophilized (optional – for serum/plasma samples)

Porcine Serum containing 0.08% Sodium Azide

Quantity: 1 ml/vial

E. Bead Diluent

1 vial containing diluent for bead preparation

Quantity: 3.5 ml/bottle

F. Human Pituitary Detection Antibodies

1 bottle containing a cocktail of biotinylated detection antibodies in Assay Buffer

Quantity: 5.5 ml/bottle

G. Streptavidin-Phycoerythrin

1 bottle containing Streptavidin-Phycoerythrin prepared in Assay Buffer

Quantity: 5.5 ml/bottle

H. LINCOplex Assay Buffer

50 mM PBS with 25 mM EDTA, 0.08% Sodium Azide, 0.05% Tween 20, and 1% BSA, pH 7.4.

Quantity: 30 ml/bottle

I. LINCOplex 10X Wash Buffer

1:10 dilution required with deionized water to give 10 mM PBS with 0.05% Proclin, and 0.05% Tween 20, pH 7.4.

Quantity: 30 ml/bottle

J. Microtiter Filter Plate

Quantity: 1- 96 Well Filtration Plate

K. Plate Sealers

Quantity: 2 Plate Sealers

L. Mixing Bottle

Quantity: 1 Bottle


Recommended storage for kit components is 2 - 8°C. See individual vials for long-term storage recommendations.

Once the standards and controls have been reconstituted, immediately transfer contents into polypropylene vials. DO NOT STORE RECONSITUTED STANDARDS OR CONTROLS IN GLASS VIALS. For long-term storage, freeze reconstituted standards and controls at £ -20°C. Avoid multiple (>2) freeze thaw cycles.

DO NOT FREEZE Antibody-Immobilized Beads, Detection Antibody, and Streptavidin-Phycoerythrin.


Sodium Azide has been added to some reagents as a preservative. Although the concentrations are low, sodium azide may react with lead and copper plumbing to form highly explosive metal azides. On disposal, flush with a large volume of water to prevent azide build up.


A. Reagents

Luminex Sheath Fluid (Luminex Catalogue #40-12.5000)

B. Instrumentation/Materials

1. Adjustable Pipettes with Tips capable of delivering 25 m l to 1000 m l

2. Multichannel Pipettes capable of delivering 25 m l to 300 m l

3. Reagent Reservoirs

4. Polypropylene Microfuge Tubes

5. Aluminum Foil

6. Absorbent Pads

7. Laboratory Vortex

8. Sonicator (Branson Ultrasonic Cleaner Model # B112.5 or equivalent)

9. Titer Plate Shaker (Lab-Line Instruments, Model #4625, or equivalent)

10. Vacuum Filtration Unit (Millipore Vacuum Manifold Catalogue #MAVM0960R, or equivalent)

11. Luminex Instrument


A. A maximum of 25 m l per well of serum or plasma can be used. Tissue culture or other media may also be used.

B. Preparation of Tissue Culture Supernatant:

Centrifuge the sample to remove debris and assay immediately or aliquot and store samples at £ -20ºC. Avoid multiple (>2) freeze/thaw cycles. Tissue Culture Supernatant may require a dilution with the appropriate medium prior to assay.

C. Preparation of Serum Samples:

Allow the blood to clot for at least 30 minutes before centrifugation for 10 minutes at 1000 Xg. Remove serum and assay immediately or aliquot and store samples at £ -20ºC. Avoid multiple (>2) freeze/thaw cycles

D. Preparation of Plasma Samples:

Plasma collection on ice using EDTA as an anti-coagulant is recommended. Centrifuge for 10 minutes at 1000 Xg at 4ºC within 30 minutes of blood collection. Remove plasma and assay immediately or aliquot and store samples at £ -20ºC. . If measuring ACTH, store plasma samples at -70ºC. Avoid multiple (>2) freeze/thaw cycles. It is recommended to centrifuge samples again prior to assay setup

E. Avoid using samples with gross hemolysis or lipemia.

F. Care must be taken when using heparin as an anticoagulant, since an excess of heparin will provide falsely high values. Use no more than 10 IU heparin per ml of blood collected.


To obtain reliable and reproducible results, the operator should carefully read this entire manual and fully understand all aspects of each assay step before running the assay. The following notes should be reviewed and understood before the assay is set-up.

A. The Antibody-Immobilized Beads are light sensitive and must be covered with aluminum foil at all times. Cover the assay plate containing beads with aluminum foil during all incubation steps.

B. It is critical to allow all reagents to warm to room temperature (20-25° C) before use in the assay.

C. The bottom of the Microtiter Filter Plate should not be in direct contact with any absorbent material during assay set-up or incubation times. The plate can be set on the non-flat side of the plate cover or any other plate holder to raise the plate from the surface.

D. After the wash steps, keep the bottom of the Microtiter Filter Plate clean by blotting on paper towels or absorbent pads to prevent any leakage due to capillary action.

E. Keep the vacuum suction on the plate as low as possible. It is recommended to have a vacuum setting that will remove 200 ml of buffer in > 5 seconds (equivalent to < 100 mmHg).

F. After hydration, all standards and controls must be transferred to polypropylene tubes.

G. The standards prepared by serial dilution must be used within 1 hour of preparation. Discard any unused standards except the original hydrated standard which may be stored at £ -20° C for 1 month and at £ -80° C for greater than one month.

H. Any unused mixed Antibody-Immobilized Beads may be stored in the bead mix bottle at 2-8° C for up to one month.

I. During the preparation of the standard curve, make certain to vortex the higher concentration well before making the next dilution. Use a fresh tip with each dilution.

J. The plate should be read immediately after the assay is finished. If, however, the plate cannot be read immediately, seal the plate, cover with aluminum foil, and store at 2-8° C for up to 24 hours. Prior to reading, agitate the plate on the plate shaker at room temperature for10 minutes. Delay in reading a plate may result in decreased sensitivity for some Pituitary Hormones.

K. The titer plate shaker should be set at a speed to provide maximum agitation without splashing of liquid outside the wells. For the recommended plate shaker, this would be a setting of 5-7, which is approximately 500-800 rpm.

L. Ensure the needle probe is clean. This maybe achieved by sonication and/or Alcohol Flushes. Adjust probe height to the Panel filter plate prior to reading an assay.

M. For cell culture supernatants or tissue extraction, use the culture or extraction medium as matrix in blank, standard curve and controls.


A. Preparation of Antibody-Immobilized Beads

Sonicate each antibody-bead bottle for 30 seconds; vortex for 1 minute. Add 0.15 ml from each antibody bead bottle to the Mixing Bottle and bring final volume to 3.0 ml with Bead Diluent. Vortex well. Unused portions may be stored at 2-8° C for up to one month.

Example 1: when using only one Pituitary antibody-immobilized beads, add 0.15 ml bead set to the mixing bottle. Then add 2.85 ml Bead Diluent.

Example 2: when using two 5 Pituitary antibody-immobilized beads, add 0.15 ml from each of the two five bead sets to the mixing bottle. Then add 2.7 25 ml Bead Diluent.

B. Preparation of Human Pituitary Standard Cocktail

1.) Prior to use, reconstitute the Human Pituitary Standard Cocktail with 250 ml Deionized Water to give a final concentration of Pituitary standards as follows: FSH as 100 mIU/ml, LH as 200 mIU/ml, TSH as 50 uIU/ml, Prolactin as 100 ng/ml,GH as 50 ng/ml and ACTH as 12.5 ng/ml. Label this bottle as standard 7.

Invert the vial several times to mix. Vortex the vial for 10 seconds. Allow the vial to set for 5-10 minutes and then transfer the standard to appropriately labeled polypropylene microfuge tube. This will be used as standard 7; the unused portions may be stored at £ -20° for up to one month.

2). Preparation of Working Standards:

Label 6 polypropylene microfuge tubes as standard 1, standard 2, standard 3, standard 4, standard 5 and standard 6. Add 150 ml of Assay Buffer to each of the six tubes. Prepare serial dilutions by adding 50 ml of the reconstituted standard 7 to the standard 6 tube, mix well and transfer 50 ml of the standard 6 to the standard 5 tube, mix well and transfer 50 ml of the standard 5 to the standard 4 tube, mix well and transfer 50 ml of the standard 4 to standard 3 tube, mix well and transfer 50 ml of standard 3 to the standard 2 tube, mix well and transfer 50 ml of standard 2 to the standard 1 tube, mix well. The 0 standard (Background) will be Assay Buffer.

Standard Concentration


Volume of Deionized Water to Add

Volume of Standard
to Add

Std 7

250 ml