Help with htaccess querystring rewrite

Been working on a solution to remove odd query strings from pages after search engines keep adding them at random. I have a solution that semi works, but I would ideally like to see it clear them all. Right now the code I have is this:

IfModule mod_rewrite.c
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
/IfModule

IfModule mod_rewrite.c
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)?sort=[^]+?(.*)$ [NC]
RewriteRule ^/?(.*)$ /$1?%1%2 [R=301,L]
/IfModule
IfModule mod_rewrite.c
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)?order=[^]+?(.*)$ [NC]
RewriteRule ^/?(.*)$ /$1?%1%2 [R=301,L]
/IfModule

IfModule mod_rewrite.c
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)?m=[^]+?(.*)$ [NC]
RewriteRule ^/?(.*)$ /$1?%1%2 [R=301,L]
/IfModule
IfModule mod_rewrite.c
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)itemid[^]+?(.*)$ [NC]
RewriteRule ^/?(.*)$ /$1?%1%2 [R=301,L]
/IfModule

IfModule mod_rewrite.c
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)amp[^]+?(.*)$ [NC]
RewriteRule ^/?(.*)$ /$1?%1%2 [R=301,L]
/IfModule

I am very open to suggestion to clean things up and make a much more optimized solution.

thanks in advance!