This ultra-pure CO 2 is then graphitized with a semi-automated graphitization line controlled by a touch-screen monitor. These targets containing the graphite will be shipped to an external laboratory that has an accelerator mass spectrometry facility. With every shipment of many unknown-age samples we must add samples coming from oxalic acid transformation which is the international standard reference material for all radiocarbon laboratories , inert samples to determine the background value blanks as well as known-age samples secondary standards , coming from multi-laboratory calibration.

This procedure assures a never-ending following of the quality, accuracy and precision of the results given to customers. CEN radiochronology laboratory also offers Pb dating.

Samples must be dry. They must be crushed and uniformely homogenized. These steps drying of the sample, crushing and homogenization can be done by the customer, or by our people at the laboratory, which will make for a slightly higher price per sample. Samples must be dried, clearly identified and packed in plastic or glass vials , or enveloped in aluminium foil or plastic bags Ziploc type. Avoid packaging the samples in paper or other organic material.

Join the form s with your package of samples. Please contact us to get the plastic vials used in our counter the transfer of the samples and capping into these vials can also be done by us at the lab. The samples must be dried. Compact the samples as much as you can in the vial and, if possible, try to get a similar height of sample for every vial.

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Each sample must be weighed with a precision of 0. If you want us to transfer and cap the samples into the plastic vials, please make sure that the samples reach us dried and properly identified. The samples must be packed in plastic vials or plastic bags Ziploc type. Join it with your batch of samples from your core. They must be finely crushed and homogenized.

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