Sven Kretschmer replied the topic: Re: Time series method for determining biogenic silica
We tested your method with sediment samples, before we will start with my in-situ pump filters.
It worked out well. With 20mL 0.2N NaOH, and 4 time points we got a good linear regression.
We subsampled 2mL, and accounted for the reduction in volume.
Thank you for the further information on your tests and experiences. That helps a lot.