After John wrote the abstract "采用微波消解—火焰原子吸收法对猪肝脏(鲜)中的痕量铅进行了测定,建立了一种微波消解样品、火焰原子吸收法测定猪肝脏(鲜)中痕量铅含量的方法.研究结果表明,在取样量为0.8g左右、HNO3(65％)∶H2O2(30％)=1∶1(体积比)、中等微波功率消解3min的条件下,检测到猪肝脏中铅的含量为0.173μg/g.该方法的RSD≤2.0％,样品加标回收率为99.0％～103％,此法所需时间短、取样量少、空白值低,样品损失少,准确度和灵敏度高.", he wrote these keywords "火焰原子吸收法, 痕量铅, 微波消解". Do you think his choice of keywords was correct? Answer yes or no.
yes