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磷酸钾缓冲液,0.5mol/L,pH7.4
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磷酸钾缓冲液,0.5mol/L,pH7.6
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磷酸钾缓冲液,0.5mol/L,pH7.8
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磷酸钾缓冲液,0.5mol/L,pH8.0
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氰乙基纤维素(CEC),9004-41-5,取代度:2.6 mol氰乙基/1 mol 纤维素
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氯化钾溶液(标称 12.8 mS/cm) 有证电导率测量标准物质,可追溯至PTB和NIST (c=0.1 mol/l) CertiPUR®
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement
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氯化钾溶液(标称 12.8 mS/cm) 有证电导率测量标准物质,可追溯至PTB和NIST (c=0.1 mol/l) CertiPUR®
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement
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氯化钾溶液(标称 0.147 mS/cm) 有证电导率测量标准物质,可追溯至PTB和NIST (c=0.001 mol/l) CertiPUR®
Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement
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氯化钾溶液 saturated with silver chloride 3 mol/l
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乙酸钠溶液,3mol/L,pH4.8
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