求助！！审稿人提出的关于检测限的问题，不懂是什么意思，求帮助。。。？文章在年前投的BB，现在审稿意见回来了，可是看到这个条意见之后就开始捉急了。看不太懂审稿人的意思，所以无从下手修改。检测限的计算方法其中一种是LOD=3SB/m，SB代表的是空白值的标准偏差。m为校准曲线的斜率。但是按照这个概念，不知道该怎么回答审稿人提出的问题。 The authors also mention that the lower detection limit was 0.3 pg mL?1 (S/N=3). A magnified calibration plot showing the change in the signal in the pg mL?1 range should definitely be presented anywhere. The authors should have such data because they calculated the detection limit. Also, it would be very helpful to show response curves for concentrations near the detection limit with a change in the background signal to demonstrate that the concentration of 0.3 pg mL?1 can be measured without any problems.1.magnified calibration plot 指的是什么曲线呢？2.背景信号改变时浓度接近检测限的响应曲线这个是什么曲线呢？不甚感激！！！查看更多7个回答 . 3人已关注
两篇最新锂电池高能正极材料的研究和UCLA dunn在Science上的一篇关于电化学储能的综述？UCLA的dunn教授在science上发表的一篇关于电化学储能的综述Nature Materials上的最新正极材料研究摘要：Nickel-rich layered lithium transition-metal oxides, LiNi1?xMxO2 (M = transition metal), have been under intense investigationas high-energy cathode materials for rechargeable lithiumbatteries because of their high specific capacity and relatively low cost1–3. However, the commercial deployment of nickel-rich oxides has been severely hindered by their intrinsic poor thermal stability at the fully charged state and insufficientcycle life, especially at elevated temperatures 1–6. Here, we report a nickel-rich lithium transition-metal oxide with a veryhigh capacity (215 mA h g?1), where the nickel concentration decreases linearly whereas the manganese concentration increases linearly from the centre to the outer layer of each particle. Using this nano-functional full-gradient approach, we are able to harness the high energy density of the nickel-rich core and the high thermal stability and long life of the manganese-rich outer layers. Moreover, the micrometre-size secondary particles of this cathode material are composed of aligned needle-like nanosize primary particles, resulting in a high rate capability. The experimental results suggest that this nano-functional full-gradient cathode material is promising for applications that require high energy, long calendar life and excellent abuse tolerance such as electric vehicles.J`DPP%RAW{R)AI~[KXSQ8PQ.jpg查看更多0个回答 . 26人已关注
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