SD Card corrupted

Hi there – I have a problem about my Mac not recognizing my Micro SD Card (Which I believe to be corrupted). I wanted to see if I can get the Mac to recognize the SD Card so I can restore the card and run First Aid on Disk utility. 

Background: I downloaded an audio file to the SD card to listen on an external portable DAC. Initially it was working absolutely fine, but later on, the DAC was no longer able to read the card. 

I connected SD Card to my Mac on an attempt to run first aid. At first, I would see an image on the Finder’s side bar of a SD file with an “?” next to it. When I tried clicking on it, I would get a message that the original file could not be found. Also, when I open disk utility, I couldn’t see anything there.

Now the SD image with “?” next to it is no longer coming up on finder. Therefore, my computer is not recognizing the SD card at all.

My question is: is there a command that I can perform to get the computer to recognize the “corrupted” SD card? Or should I just accept that I have lost the card?

Thanks in advance.