Precision in every pellet, trust in every test
A single-use, cryopreserved, passage-zero reference material containing a precisely quantitated number of viable microorganisms—engineered under ISO 17034 certification for streamlined microbial quality control in pharmaceutical testing.
- Antimicrobial Effectiveness Testing (USP <51>, EP 5.1.3, JP 4.05 I)
- Test for Burkholderia cepacia Complex (USP <60>)
- Microbial Enumeration Tests (USP <61>, EP 2.6.12, JP 4.05 I)
- Tests for Specified Microorganisms (USP <62>, EP 2.6.13, JP 4.05 II)
- Sterility Test (USP <71>, EP 2.6.1, JP 4.06)
- Disinfectants and Antiseptics (USP <1072>)
- Respiration-Based Microbiological Methods for Short-Life Products (USP <72>)
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See how rapidly MicroQuant™ pellets rehydrate!
Features and benefits of MicroQuant™
Accurate CFU counts – High- (107–108 CFU/vial) and low-titer (100–1,000 CFU/vial) formats.
- Single-use pellets – Cryopreserved for convenience and sterility.
- Fast rehydration – Ready to use in ~1 minute at room temp.
- 8-hour shelf life post-rehydration – Usable all day at 2–8°C.
- Fridge-stable – Stores 6–12 months at 2–8°C.
- ISO 17034 accredited – Reference Material quality.
- Original ATCC strains – Direct, passage-zero organisms.
- Global standards ready – Supports USP, EP, JP methods.
- Workflow-friendly – Saves time and reduces training.
- Dual-pack format – 5 pellets + 5 buffer vials per box.
| Features | Company A | Company B | Company C | Company D | |
|---|---|---|---|---|---|
| Processing time ~1 minute | ✓ | ✓ | ✓ | ||
| 2-8°C refrigeration storage | ✓ | ✓ | ✓ | ||
| Manufactured under ISO 17034 | ✓ | ✓ | ✓ | ✓ | ✓ |
| Product kit includes rehydration buffer | ✓ | ✓ | ✓ | ✓ | |
| Sourced from ATCC | ✓ | ✓ | ✓ | ||
| Provided as a passage 0 strain | ✓ |
Streamline your workflow from weeks to minutes with MicroQuant™
MicroQuant™ directly addresses the core challenges faced by microbial quality control labs by delivering precise, reproducible results through single-use, ready-to-rehydrate pellets that streamline workflows and eliminate culture maintenance.
Hear from one of the inventors of MicroQuant™
See what others are saying about MicroQuant™
| "The MicroQuant™ format reduced setup time" | "MicroQuant™ had the most accurate CFU results" |
"MicroQuant™ had the fastest rehydration" | ”Other products are always clumping but MicroQuant™ grew with no aggregates" |
MicroQuant™ is the top performer compared to other single-use controls
| Single-use control | Observation rating | Justification |
|---|---|---|
| Company A | ★★★☆☆ | Moderate preparation with 1 hour of warming. Additional buffer needed for some formats. |
| Company B | ★★★☆☆ | Simple process but physical risks noted (pellet may miss vial, tipping risk). |
| Company C | ★★★★☆ | Simple preparation. No consumables needed. Incubator required. |
| Company D | ★★★★☆ | Simple preparation. No clumping or precipitation noted. Additional buffer needed for high CFU quantitation. |
| ★★★★★ | Simple and intuitive preparation. No clumping or precipitation. Buffer included. |
Get more information about these products
Application Note
Read our application note to learn about the development of our MicroQuant™ format and see how it delivers fast, reliable results in microbial quality control testing.
Poster
Check out our poster to see our latest data demonstrating the stability of MicroQuant™ controls following transportation and rehydration.
View our frequently asked questions
How do I process or store MicroQuant™ products after delivery?
MicroQuant™ should be placed in 2-8°C upon receipt and can be stored at this temperature for 6-12 months (See individual product pages for expiry).
My MicroQuant™ kit was mistakenly stored in the freezer. Can I still use it?
Yes, no performance impact was observed in ATCC benchmark studies following storage in a freezer.
My MicroQuant™ kit experienced a temperature excursion at room temperature, can I still use it?
MicroQuant™ vials can remain at ambient temperature for up to 2 days without any statistically significant difference as compared to items that remained in 2-8°C storage.
What steps are needed to prepare MicroQuant™ products for use?
Refer to the Instructions for Use (IFU) and the product information sheet for information on how to prepare MicroQuant™ products for use. MicroQuant™ products can be used immediately after removal from 2-8°C storage. There is no need to thaw the vials containing the rehydrating solution or pellet.
Are we able to rehydrate MicroQuant™ products then store in the refrigerator for a week or so?
The dissolved pellet should be used within 8 hours after rehydration. Refer to the product information sheet or Instructions for Use (IFU) for additional details.
One of my MicroQuant™ pellets was fractured. Can I still use it?
MicroQuant™ pellets that may be fractured during shipment are still able to be used by following the product information sheet and Instructions for Use (IFU).
What if a MicroQuant™ component vial is cracked or broken and can't be used? How do I replace it?
In the event that a vial is cracked or broken during shipment, please email our product experience specialists at [email protected].
Are the MicroQuant™ Bacillus spizizenii and Aspergillus brasiliensis products provided as cells or spores?
MicroQuant™ Bacillus spizizenii, high CFU (ATCC 6633-HQ-PACK) and MicroQuant™ Bacillus spizizenii, low CFU (ATCC 6633-LQ-PACK) are provided as cells. MicroQuant™ Aspergillus brasiliensis, high CFU (ATCC 16404-HQ-PACK) and MicroQuant™ Aspergillus brasiliensis, low CFU (ATCC 16404-LQ-PACK) are provided as spores.
What are some non-selective agars that can be used with MicroQuant™ strains?
Tryptic soy agar (TSA) plates can be used with MicroQuant™ strains.
How are MicroQuant™ products manufactured and authenticated?
MicroQuant™ products are manufactured with ATCC's rigorous seed-lot and quality management systems. The novel cryopreservation technique is proprietary and patent pending to ATCC and produces a discrete pellet that is stable at refrigeration temperatures. ATCC authenticates biological materials through a rigorous process that includes genotypic, phenotypic, and functional analyses. Please refer to the Certificate of Analysis for detailed test results and authentication data for each strain.
How do I access the Certificate of Analysis (CoA) for MicroQuant™ products?
The Certificate of Analysis (CoA) for the pellet is associated with the batch number on the label for the pellet vial. The assembled kit is assigned a different batch number and does not have a separate CoA. You may also scan the QR code on a pellet vial to directly access the CoA.
Can I use a different rehydration buffer (e.g. PBS or PB)?
For best results and CFU performance according to CoA data, it’s important to use the provided rehydration buffer, which was designed for this purpose.
Can I rehydrate and then grow the organism in standard media?
Yes! The organisms will be healthy at rehydration and will readily grow in standard media, but there may be some variations in titer compared to media in compendial guidelines.
Can I try an organism-free pellet?
Blank pellets may be available on request. Please get in touch with the ATCC sales team or your nearest distributor to discuss further.
