신고사유
신고해주신 내용은 쇼핑몰 운영자의 검토 후 내부 운영 정책에 의해 처리가 진행됩니다.
상품명 | Density Marker Beads in Aqueous Solution for Use in Density Gradients - Precision Density Microspheres |
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판매가 | 견적문의 |
월 렌탈 금액 |
월 원 (개월 기준)
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구매방법 | |
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배송주기 |
정기배송 할인 save
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옵션선택 |
(최소주문수량 1개 이상 / 최대주문수량 0개 이하)
사이즈 가이드상품명 | 상품수 | 가격 |
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Density Marker Beads in Aqueous Solution for Use in Density Gradients - Precision Density Microspheres | 수량증가 수량감소 | 견적문의 ( ) |
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할인가가 적용된 최종 결제예정금액은 주문 시 확인할 수 있습니다.
Density marker beads are small colored microspheres of known mass density that are used for calibrating density gradients and determining density in gradient columns. Density gradients are often used for separations and purification of cells, viruses and sub-cellular particles. Generally a set of several density marker beads covering a range of densities is used. The gradient is calibrated with beads that float at different heights within the column. When a test sample is added to the column it drops until the point of neutral buoyancy and the density is determined from the calibration chart. Density gradient columns can be used to measure the density of any sample.
Cospheric Density Marker Beads are provided at a 20% concentration in an aqueous solution in 2.5ml vials. Our Density Beads are in the 200-300um size range. Unlike GE Healthcare kits that have been discontinued, the Cospheric's colored microspheres are ready for use right out of the vial.
Storage: As no preservatives are added, we recommend unrefrigerated product to be used within 18 months of purchase. The product can be refrigerated or frozen to extend the shelf life of the solution. The density beads are inert and do not degrade over time. However, the solution can degrade causing agglomeration and poor suspension leading to wider bands. If the solution degrades, the beads can be flushed clean, and then re-suspended using our Tween Suspension Protocol.
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