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Control trace-metal background without giving up everyday tube performance.
A purified polypropylene tube, clearly marked freeze limit and natural-color screw cap bring contamination-conscious sample handling to the familiar 15 and 50 mL formats. Metal-free is a defined testing claim: MTC Bio reports less than 1 ppm for 38 specified metals by ICP-MS, not absolute zero metal content.
38 metals
Tested below 1 ppm
20,000 × g
Maximum RCF
15 & 50 mL
Two capacities
Sterile
E-beam SAL 10⁻⁶
Designed for Your Workflow
Defined trace-metal control
Purified polypropylene certified below 1 ppm for 38 specified elements, as tested by ICP-MS.
Visible fill limits
Hi-Viz™ graduations include a maximum freeze-capacity line to guide filling.
Natural-color closures
HDPE screw caps provide a manufacturer-rated seal up to 95 kPa.
Two sterile pack styles
Choose resealable bags of 25 or individual wrappers to match sample handling.
Purity and practicality in the same tube
Choose bagged tubes for routine batches or individual wrappers when opening one tube at a time. Both formats share the 20,000 × g maximum RCF rating and clearly printed graduations.
Choose Your Configuration
C2901
Configuration: 15 mL | 25 per bag | 500 per case
Order unit: 500 pieces per CS
C2903
Configuration: 50 mL | 25 per bag | 500 per case
Order unit: 500 pieces per CS
C2915-W
Configuration: 15 mL | Individually wrapped | 250 per case
Order unit: 250 pieces per CS
C2950-W
Configuration: 50 mL | Individually wrapped | 250 per case
Order unit: 250 pieces per CS
Typical Applications
- Trace-metal-sensitive sample preparation
- ICP-MS sample-handling workflows after method validation
- Routine centrifugation within rated limits
- Frozen sample storage respecting the printed freeze line
Selection and Use Tip
Check the elements and reporting limits required by your method. Use appropriate blanks and lot documentation before relying on the tubes in trace analysis. A less-than-1-ppm certification is not a guarantee of suitability for every ultratrace assay.
Frequently Asked Questions
What does metal-free mean for TotalPure tubes?
MTC Bio reports testing by ICP-MS for 38 specified metals, each below 1 part per million. It does not mean an absolute absence of every metal or guaranteed suitability at all analytical detection limits.
Which volumes and packaging can I order?
C2901 is 15 mL and C2903 is 50 mL, each in 20 resealable bags of 25 tubes, 500 per case. C2915-W is 15 mL and C2950-W is 50 mL, individually wrapped, 250 per case.
Are the tubes supplied sterile?
Yes. The manufacturer specifies e-beam sterilization to SAL 10⁻⁶ and states that the tubes are RNase-, DNase- and pyrogen-free. Maintain appropriate handling after opening.
How fast can these tubes be centrifuged?
The manufacturer rates both volumes at a maximum of 20,000 × g. Use a compatible rotor and adapter and obey any lower limits imposed by your centrifuge, sample or validated procedure.
Can I freeze samples in TotalPure tubes?
The manufacturer lists a −80°C to 120°C temperature range and prints a maximum freeze-capacity line on the tubes. Do not fill to nominal capacity for freezing; follow the printed limit and your protocol. The HDPE cap should not be assumed autoclavable.
Are these an alternative to Falcon 50 mL conical tubes?
TotalPure C2903 and Corning Falcon 352070 are both sterile 50 mL polypropylene centrifuge-tube options supplied 25 per bag and 500 per case. TotalPure emphasizes its specified trace-metal testing; do not transfer that certification to Falcon or assume equivalent analytical background. Validate rotor fit, blanks and recovery before substitution.
Is the natural-color cap leak-proof?
MTC Bio rates the tube-and-cap seal up to 95 kPa. This rating does not establish hazardous-goods transport compliance or eliminate the need to check cap closure, chemical compatibility and handling conditions.
Does a quantity of one mean one tube?
No. One unit ordered is a complete case: 500 tubes for C2901/C2903 or 250 tubes for C2915-W/C2950-W. Prices and inventory are per case.
Brand names cited for comparison or fit identification are trademarks of their respective owners. No OEM status, endorsement, clinical equivalence or universal interchangeability is implied.
Related products and workflow options
- Alternative format: ProSeries performance centrifuge tubes — Compare general-purpose performance features with the trace-metal-focused TotalPure format. Validate each tube for the assay and rotor.
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