Kirk and PE,
Thanks for your support. Kirk,at first I mistook your advice about spinach as pure sarcasm. But now I realize it is a valid suggestion. Why acetone and not methanol? I have found reffrences to extraction via methanol.
As to where I got my chlorophyll, I have used both an aquious suspension and a dry powder. Both were supplied as chlorophyll/copper compounds. In either case a methanol extraction, worked the best, as evidensed by shooting a color chart in daylight.
PE- I am going to give the SDA3057 a second try once I receive my new shipment of silver,later this week. I want to keep both methods going.