Unclosed quotation mark after the character string ошибка

Trying to insert a lot of records from a MySQL database into SQL Server(2005 SQLExpress) database. Here’s the query and the error from PHP. I am not understanding it. All opening strings are closed properly but still..

INSERT INTO tbl_email (uniq_id, Respondent_ID, Bcode, BID, Email, Voornaam, Voorletters, Tussenvoegsel, Achternaam, Geslacht, Adres, Huisnummer, Toevoeging, Postcodecijfers, Postcodeletters, Woonplaats, Land, Telefoon1, Mobiel, Telefoon2, Matchkey, Profile, Geboortejaar, Geboortedatum, Leefsituatie, Gezinsgrootte, Inkomen, Beroep, Opleiding, Huis, Huisjaar, Huistype, Tuin, Auto, Beleggen, Kopenopafstand, Financien, Respondenttype, Charitype, Chari, Postcode, Huisdier, EV2, EV3, EV4, EV5, EV6, EV7, EV8, EV9, Aanmaakdatum, fk_ID_projectreactie, status_subscribed, unsubscribeddate, insertdatetime, editdatetime, to_delete) VALUES (6, "41", "288", "53", "test@hotmail.com", "a", "M", "", "0", "2", "0", "176", "", "5652", "EP", "a", "", "", "0", "0", "0", "", "0", "", "2", "2", "", "4", "4", "1", "2006", "", "", "", "1", "1", "", "3", "", "", "a", "1", "", "", "", "", "", "", "", "", "a", 0, 0, Null, Null, Null, 1)
Warning: mssql_query() [function.mssql-query]: message: Unclosed quotation mark after the character string ''. (severity 15) in crn_export_mssql.php on line 94

What could be the problem. I ran this query singly through SQL Server management console and it accepted and inserted. I even ran this query in another PHP file and data was inserted. However, when I do it in a PHP loop then this problem., The code snippet is,

while(//get rows from mysql)
{ //create query on runtime
$query = $strInsertDump . '('.implode(', ', $arrInsertField).')';
$result = mssql_query($query, $mslink);
}

Edit:

I used PDO now and here’s what the errorInfo returns.

Array
(
[0] => HY000
[1] => 20018
[2] => Incorrect syntax near ''. [20018] (severity 5) [(null)]
[3] => -1
[4] => 5
[5] => OpenClient
)