An operation pipe and a device equipped with the operation pipe, which use a gel to perform operations such as separation, extraction, purification, elution, recovery, analysis and the like of target components that are biological components such as nucleic acids. More specifically, an operation pipe and a device, with which it is possible to perform operations such as separation, extraction, purification, elution, recovery, analysis and the like of target components in a sealable pipe by operating magnetic particles in the pipe under a magnetic field from outside of the pipe.

A test device is provided that can comprise: a housing accommodating a chromatography support, wherein the housing comprises: a supporting part that supports a container accommodating a liquid used for chromatography. A method is provided for performing chromatography using the test device.

The present invention relates to a method for the pre-analytical treatment of a blood sample to be analyzed, comprising a suitable sample matrix for said sample and suitably centrifuging said sample. The present invention further relates to an apparatus, characterized in that it comprises suitable components for performing the method according to the present invention. The present invention further relates to the use of said apparatus according to the present invention for the automated pre-analytical treatment of a blood sample to be analyzed according to the present invention.

High resolution protein A chromatography employing a chaotropic agent and pH gradient or pH step elution buffer results in improved peak resolution between closely related molecular species. Bispecific antibodies containing a protein A-binding-ablating substitution CH3 domain paired with a protein A-binding CH3 domain are separated with high peak resolution from monospecific antibodies containing a protein A-binding-ablating substituted CH3 domain paired with the protein A-binding-ablating substituted CH3 domain and monospecific antibodies containing a protein A-binding CH3 domain paired with the protein A-binding CH3 domain. Useful chaotropic agents include magnesium chloride and calcium chloride.

The invention relates to processes for purification of poly-tagged products, such as mRNA, from synthetic or biological compositions. The process involves contacting the composition with a oligo d (T)-functionalized chromatography medium comprising a convection-based chromatography material.

Provided herein are methods of purifying messenger RNA (mRNA) by subjecting a preparation comprising in vitro synthesized mRNA to one or more steps of enzymatic digestion with a proteinase, optionally with a further oligo dT affinity chromatography step. Also provided are mRNA purified by the methods described herein.

Provided herein are affinity reagents having affinity for particular target, each reagent having a unique DNA barcode, and methods for using the same to measure the abundance of targets in a sample. In particular, methods are provided in which unique barcodes linked to affinity reagents are contacted to a sample to bind antigens if present in said sample. In cases in which the affinity reagents are antibodies and the targets are antigens, antibodies that are bound to their target antigens can be separated from unbound antibodies and the DNA barcode associated with the affinity reagent is amplified, such as with a PCR reaction. In some cases, amplified barcode DNA is subjected to DNA sequencing as a measure of the levels of the target protein in the sample.

The present invention provides a method for purifying an intended substance, a kit for purifying the intended substance, and a silicon oxide-binding tag for use in the method and the kit. In the present invention, a complex of a silicon oxide-binding tag and a substance is caused to specifically bind to silicon oxide in a solution for binding, to which solution no salt is added, and binding between the silicon oxide-binding tag and the silicon oxide is broken with use of arginine.

The present invention provides an easy-to-use and higher-sensitivity immunochromatography device for an RSV, the device using an antibody that binds specifically to F protein of the RSV in a determination region of a chromatography medium, a test kit by an immunochromatography method, and a method for detecting an RSV using these device and kit. The present invention relates to an immunochromatography device in which not only an antibody that binds specifically to F protein of an RSV but also an antibody that binds specifically to N protein of the RSV is solid-phased in a determination region of a chromatography medium. The present invention also relates to a test kit by an immunochromatography method, and a method for detecting an RSV using these device and kit.

Provided herein are affinity reagents having affinity for particular target, each reagent having a unique DNA barcode, and methods for using the same to measure the abundance of targets in a sample. In particular, methods are provided in which unique barcodes linked to affinity reagents are contacted to a sample to bind antigens if present in said sample. In cases in which the affinity reagents are antibodies and the targets are antigens, antibodies that are bound to their target antigens can be separated from unbound antibodies and the DNA barcode associated with the affinity reagent is amplified, such as with a PCR reaction. In some cases, amplified barcode DNA is subjected to DNA sequencing as a measure of the levels of the target protein in the sample.