SNAP Antibiotic Residue Test

Rugged results in a snap

The risk of dumping milk is real. Reduce it with reliable SNAP® test kits.

 

Worldwide—from processing plants to government regulatory agencies, co-ops to dairy farms—customers rely on IDEXX technologies for detecting antibiotic contaminants and ensuring milk safety and quality. Our innovative technologies and unmatched service and support can help make drug-residue testing a simple part of your quality routine.

 

 
Dairy SNAP Testing

Questions? Call IDEXX Technical Services at 1-800-321-0207.

Ensure milk safety and quality with SNAP® antibiotic residue tests

 

The SNAP® antibiotic residue tests are:

  • Rugged—SNAP devices withstand rough work in the field and at the plant. The components are sturdy and the process is easy, even for the coldest of hands. Plus, there's no large or awkward instrumentation or fragile lab equipment required. And SNAP has the largest FDA/AOAC-approved temperature range of any test on the market—45°C ±5°C, so you can have more confidence in your results.

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  • Simple—SNAP devices are self-contained and portable. Test anywhere, anytime, and be ready for the truck whenever it arrives.

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  • Convenient—SNAP tests give you results in less than ten minutes. No measuring reagents or long waits for answers; perfect for high-volume testing.

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  • Easy to Use—SNAP tests are so easy you can do the whole test in just two simple steps. And SNAP results are easy to interpret—simply compare the sample spots to the control spot.

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  • Flexible—You can read SNAP devices visually or you can use the SNAPshot® DSR Reader, which provides hard-copy results that meet FDA/AOAC requirements.

 

 

Bulk-tank testing with SNAP tests is critical

 

Testing your bulk tank with SNAP tests:

  • Protects you and your business
    Testing your bulk tank for antibiotic residues is a critical part of minimizing your risk of shipping a hot load. Testing helps you protect yourself from the financial risk, as well as from the risk of damaging your reputation.

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  • Provides peace of mind
    Accidents happen. You can rest assured that your milk tested within safe limits and that you minimized the risk of shipping a hot load.

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  • Makes good business sense because there's a lot at stake
    Not only can you lose YOUR milk check, you may have to pay for the other farmers' losses too. And if you lose your bulk tank, you'll still have cows to milk and farm hands to pay on top of all your other overhead expenses.

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  • Lets you know before anyone else
    Be certain about your bulk tank BEFORE the truck leaves your farm—don't wait until the plant starts pumping.

SNAP Residue Tests

 

NEW SNAP BETA-LACTAM TEST KIT

Detects penicillin G, amoxicillin, ampicillin, ceftiofur and cephapirin residues in raw, commingled bovine milk at or below the U.S. FDA-established tolerance/safe levels. Some common antibiotic treatments that contain beta-lactam drugs are ToDAY®, ToMORROW®, Albacillin®, Cefa-Lak®, Quartermaster®, Cefa-Dri® and NAXCEL®.  Part Numbers:
 99-09290 (20-test kit)
 99-09291 (100-test kit)

View SNAP Beta-Lactam Test Sensitivities

 

DrugFDA Safe LevelEuropean MRL90/95 Detection Level
Amoxicillin10 ppb4 ppb7.3 ppb
Ampicillin10 ppb4 ppb5.8 ppb
Ceftiofur100 ppb100 ppb12 ppb
Cephapirin20 ppb60 ppb11.7 ppb
Penicillin5 ppb4 ppb3 ppb

 

SNAP MRL BETA-LACTAM TEST KIT

Detects penicillin in raw, commingled bovine milk at or below the European Maximum Residue Limit (MRL). Beta-Lactams are the most widely used antibiotics in the treatment of mastitis and other infections in dairy cows.  Part Numbers:
 99-09698 (20-test kit)
 99-09699 (100-test kit)

View SNAP MRL Beta-Lactam Test Sensitivities

 

DrugFDA Safe LevelEuropean MRL90/95 Detection Level
Penicillin G5 ppb4 ppbAt or below 4 ppb
 

 

SNAP TETRACYCLINE TEST KIT

Detects tetracycline, chlortetracycline and oxytetracycline residues in raw, commingled bovine milk at or below the U.S. FDA-established tolerance/safe levels. Some of the most common tetracycline treatments include LA-200® and Oxytet®.  Part Number:
 99-11470

View SNAP Tetracycline Test Sensitivities

 

DrugFDA Safe LevelEuropean MRLDetection LevelDetection Level with Dilution
Tetracycline300 ppb100 pbbAt or below 50 ppbAt or below 150 ppb
Chlortetracycline300 ppb100 pbbAt or below 100 ppbAt or below 300 ppb
Oxytetracycline300 ppb100 pbbAt or below 50 ppbAt or below 300 ppb

 

 

SNAP AFLATOXIN M1 TEST KIT

For the screening detection of aflatoxin M1 in raw, commingled bovine milk at or below the U.S. FDA-established action level.  Part Number:
 99-09205

View SNAP Aflaxoxin M1 Test Sensitivities

 

DrugFDA Safe LevelEuropean MRLDetection Level
Aflatoxin M10.5 ppb0.05 ppbAt or below 0.5 ppb

 

 

 

SNAP GENTAMICIN TEST KIT

For the screening detection of gentamicin in raw, commingled bovine milk at or below the U.S. FDA-established action level.  Part Number:
 99-09321

View SNAP Gentamicin Test Sensitivities

 

DrugFDA Safe LevelEuropean MRLDetection Level
Gentamicin30 ppb100 ppbAt or below 30 ppb

 

 

SNAP SULFAMETHAZINE TEST KIT
For the screening detection of sulfamethazine residues in raw, commingled bovine milk at or below the FDA safe/tolerance level of 10 ppb.  Part Number:
 99-13380

View SNAP Sulfamethazine Test Sensitivities

 

DrugFDA Safe LevelEuropean MRLDetection Level
Sulfamethazine10 ppb100 ppbAt or below 10 ppb

 

 

ToDAY and ToMORROW are registered trademarks of Franklin Laboratories, Inc.
Albacillin, Quartermaster and NAXCEL are registered trademarks of Pfizer Company.
CEFA-LAK and Cefa-Dri are registered trademarks of Fort Dodge Laboratories, Inc.
LA-200 is a registered trademark of Pfizer, Inc.
Oxytet is a registered trademark of Boehringer Ingelheim Animal Health, Inc.

How to use SNAP® residue tests

 

Before you begin:
  • Work space must be clean and free of drug residues.
  • Preheat heater block to 45°C ±5°C (113°F ±9°F).
  • Place SNAP device on heater block; leave on heater block for duration of test.
  • Make sure conjugate pellet is at the bottom of the sample tube.
    If not, tap tube gently to return pellet to the bottom.
  • Agitate the milk sample thoroughly.
 
Note:
  • Accurate incubation times and temperatures are essential.
  • Do not use a SNAP test after its expiration date.
  • Refer to package insert for complete instructions.

 

 
Step 1: Prepare Sample
    

Using pipette, draw up milk to indicator line (450 μL ±50 μL).* Add milk to sample tube.

 

Gently shake tube side-to-side
3–4 times to dissolve reagent pellet.

 

Place tube on heater block and incubate:

Beta-Lactam Tetracycline Aflatoxin M15 minutes
Gentamicin Sulfamethazine2 minutes

 

 
Step 2: Run Test
    

Pour entire contents of sample tube into sample well of SNAP® device.

 

As the edge of the activation circle begins to disappear, press down firmly until you hear a distinct “snap.” If activation takes more than 60 seconds, result may be inaccurate.†

 

Place tube on heater block and incubate:

Beta-Lactam Tetracycline Aflatoxin M14 minutes
Gentamicin Sulfamethazine7 minutes

 

 
Step 3: Read Results
    

Read results within 30 seconds after incubation, either visually or using the SNAPshot® DSR Reader.

 

Negative
Sample spot is darker than or
equal to control spot. No drug residue detected.

 

Positive
Sample spot is lighter than control spot. Drug residue detected.


* NCIMS-certified laboratories must use a calibrated pipette.
† A slow flow rate may be caused by a thick sample or by using less than 450 μL of sample.

SNAP® Residue Testing Frequently Asked Questions

 

How to use SNAP® tests

  • How do I use SNAP tests?
    Please refer to the How to Use tab or our convenient training video.
  • How can I get additional support/information?
    We have provided the most frequently asked questions to help you get started. When you receive your order, you will also receive detailed printed instructions that fully outline how to use your SNAP Heater Block and your SNAP tests. Anytime you have questions, you can call IDEXX Technical Services at 1-800-321-0207 or 1-207-556-4496, Monday through Friday, 8:00 a.m. to 5:00 p.m. ET, fax 1-207-556-4630 or .
  • How should I store my SNAP tests?
    Refrigerate all SNAP materials at 0°–7°C (32°–45° F). Tests can be kept at room temperature, 18°–29°C (64°–84°F), during the day of use. Remove only the number of tests to be used for the day.
  • How long does the SNAP test take?
    The SNAP rapid screening method produces results in less than ten minutes.
  • What is the proper heater block temperature?
    The SNAP test kits must be run at 45°C ±5°C (104°–122°F). The SNAP Portable Heater Blocks have internal thermostats optimized within the range of 40°–50°C. Allow 10–15 minutes for the portable heater to reach operating temperature. If you do not see any colour in the temperature strip, do not attempt to run the test. Contact IDEXX Technical Services if you have any questions about heater performance. Call 1-800-321-0207 or 1-207-556-4496, Monday through Friday, 8:00 a.m. to 5:00 p.m. ET, fax 1-207-556-4630 or .
  • How critical is the activation time of the SNAP test?
    Activation time is very critical. After the initial five-minute incubation, pour the entire contents of the sample tube into the sample well of the SNAP device. Remain with the device and watch the sample flow across the results window toward the blue activation circle. When the blue activation circle BEGINS to disappear, press the activator firmly until the device "snaps" and the activator is flush with the body of the SNAP device. (When the edge of the circle nearest the sample begins to turn from dark blue to white, activation should occur. Do not let the circle completely disappear.)
    SNAP Technical Tip—When to "SNAP"
    SNAP Test Protocol
  • Does the SNAP device need to remain on the heater block throughout the entire test?
    Yes, the SNAP device must remain on the heater block at 45°C ±5°C for the duration of the test—during the five-minute incubation time, the activation time and the four-minute color development time.
  • Can I test more than one sample at a time?
    The number of SNAP tests you can run at one time depends on the type of heater block you have. IDEXX offers several models that allow a minimum of two SNAP devices and a maximum of eight SNAP devices per heater. With the preset portable models (115/12V AC/DC), you can accommodate two SNAP devices at a time.

    If you're running multiple samples, set up all samples and SNAP devices on the heater, then set a timer for five minutes. After the five-minute incubation, individually pour the samples onto the sample well of each device. Watch the devices carefully as each sample may flow at a different rate. Activate each device as the individual activation circles begin to disappear. Snap the devices completely and set a timer for the four-minute colour development time after the last device has been activated. After four minutes, you can read the results.
  • Do SNAP tests need to be brought to room temperature before testing?
    No, you do not need to warm the kits prior to use; you can run the SNAP tests directly out of the refrigerator. Do not open the foil pouch until you're ready to run the test.

    Before you test:
    1. Verify that the SNAP device has prespots in the results window and activation circle.
    2. Make sure the pellet is moving freely in the bottom of the sample tube.
    3. Be sure the heater block has been preheated to a temperature within the 45°C ±5°C range.
  • Does IDEXX have a reader approved for NCIMS testing for the SNAP tests?
    Yes, the SNAPshot DSR Reader is available.

 

Ordering and shipping

  • How can I order from IDEXX?
    You can place your order with one of our customer service representatives by calling 1-800-321-0207 or 1-207-556-4496 (Monday through Friday, 8:00 a.m. to 6:00 p.m. ET).
  • How long will it take to receive my order?
    Within North America, we generally ship all orders the same business day we receive them (orders received after 6:00 p.m. Eastern Time are shipped the next business day). Depending on the day of the week you order, most orders from customers in the U.S. will be delivered no later than five business days after they are placed.

    Please note: We will not deliver to a P.O. box. Someone must be available at the shipping address to sign for the delivery. Please consider this when you provide your shipping information.

    If you need to choose a faster method of shipping or for shipping times outside of North America, please contact IDEXX Customer Service at 1-800-321-0207 or 1-207-556-4496 (Monday through Friday, 8:00 a.m. to 6:00 p.m. ET).
  • How can I get answers to my questions?
    If you have a question about your order or its delivery, you can:

    Contact an IDEXX representative:
    • By telephone at 1-800-321-0207 or 1-207-556-4496 (Monday through Friday, 8:00 a.m. to 5:00 p.m. ET)
    • By fax at 1-207-556-4630
  • What if I need to change or cancel an order?
    In most cases, we process orders the same day we receive them. To ensure we receive any changes as soon as possible, please call one of our customer service representatives at 1-800-321-0207 or 1-207-556-4496 (Monday through Friday, 8:00 a.m. to 6:00 p.m. ET).

Still have questions?
IDEXX backs all our SNAP kits with a dedicated team of technical service professionals available to answer your product, regulatory and dairy industry questions. Just call IDEXX Technical Services at 1-800-321-0207 or 1-207-556-4496, Monday through Friday, 8:00 a.m. to 5:00 p.m. ET, fax .