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Usbio/Leibovitz L-15 Medium w/L-Glutamine, Calcium-Free (Powder)/10L/L2101-02188bio精品生物—专注于实验室精品爆款的电商平台 - 蚂蚁淘旗下精选188款生物医学科研用品
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Usbio/Leibovitz L-15 Medium w/L-Glutamine, Calcium-Free (Powder)/10L/L2101-02

The most commonly used buffering system for mammalian cell cultures is a bicarbonate/CO2 system, which requires CO2 regulators and incubators to supply a constant level of CO2. As a replacement, Leibovitz developed a bicarbonate-free medium, L15, with relatively high levels of certain amino acids in the free base form.||The most common method in use today for buffering mammalian cell cultures is the bicarbonate/CO2 system, which is based on the following equilibrium:|CO2 + H2O<-->HCO3-- + H+||The use of bicarbonate is an attempt to mimic the buffering system of blood, but it has at least two major drawbacks. (1) The pKa of bicarbonate is 6.1, which is far removed from the desired pH range of cell culture media (7.0-7.4). (2) Although bicarbonate is cheap, supplying a constant level of CO2 to cell cultures is definitely not, as it requires expensive CO2 incubators or fermentors.Appearance: |Light orange to tan, homogenous, free flowing powder||Solubility: |Yellow to red, clear, complete||pH: |As Reported||Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
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